A magnetic communication device

Abstract

A magnetic communication device includes a ground command center and an underground communication terminal, wherein the underground communication terminal includes a terminal controller, a terminal magnetic receiver, a terminal magnetic transmitter and a terminal HMI human-machine interface, wherein the terminal magnetic receiver receives a magnetic pulse signal sent by the ground command center and is connected to the terminal controller through a terminal signal conditioning circuit, wherein the terminal magnetic transmitter is connected to the output end of the terminal controller through a terminal transmission driver and sends a magnetic pulse signal to the ground command center, and wherein the terminal HMI human-machine interface is connected to the communication interface of the terminal controller. The present invention utilizes magnetic pulse signals to transmit mine emergency rescue information, which not only has strong anti-interference capability and good communication quality, but also the signal transmission does not rely on underground cables and pipelines and other facilities, thereby greatly improving the flexibility of communication device deployment. The device can improve communication quality and disaster relief efficiency, and can meet the communication requirements of mine emergency rescue.

Description

Technical Field

[0001] The invention relates to a communication system suitable for mine emergency rescue and belongs to the technical field of communication. Background Art

[0002] The complexity of the natural geographical environment underground in mines is one of the reasons for the frequent occurrence of mine accidents. When a disaster occurs in a mine, the traffic and ventilation conditions in the tunnels deteriorate, harmful gases such as gas and carbon monoxide exceed the limit, and severe conditions such as high temperature, thick smoke, and insufficient light may occur. The original communication infrastructure of the mine may also be paralyzed, resulting in interruption of communication between the mine and underground. At this time, whether the rescue command center and the trapped personnel at the rescue site can carry out two-way communication and command and dispatch with more comprehensive information will have a significant impact on the rescue effect.

[0003] At present, common rescue communication equipment includes wired acoustic telephone, wired video intercom communication system improved on acoustic telephone, medium frequency induction wireless telephone and leaky cable communication system. Wired communication devices have their own advantages and can realize voice or visual communication command functions, but wired rescue communication systems have obvious shortcomings compared with wireless systems, such as troublesome cable laying, delaying the golden time for disaster relief, and affecting disaster relief efficiency, and cannot well meet the requirements of rapid emergency response and flexibility of disaster relief communication.

[0004] Medium frequency induction radio telephones can conduct electromagnetic waves with the help of existing cables, pipes and other metal conductors in the well, but medium frequency induction communication has the disadvantages of large noise, poor quality and inflexible deployment. Leaky cable communication products use the laying of proprietary leaky cables to conduct electromagnetic waves, which improves the quality of wireless communication to a certain extent compared with medium frequency induction communication, but also brings the disadvantage of extremely inflexible deployment and maintenance.

[0005] In summary, the existing rescue communication equipment is either not flexible enough in deployment or has poor communication quality, which cannot meet the communication requirements of mine emergency rescue. Summary of the invention

[0006] The purpose of the present invention is to provide a magnetic communication device with flexible deployment and good communication quality to meet the communication requirements of mine emergency rescue in view of the shortcomings of the prior art.

[0007] The problem described in the present invention is solved by the following technical solution:

[0008] A magnetic communication device comprises a ground command center and an underground communication terminal, wherein the underground communication terminal comprises a terminal controller, a terminal magnetic receiver, a terminal magnetic transmitter and a terminal HMI human-machine interface, wherein the terminal magnetic receiver receives a magnetic pulse signal sent by the ground command center and is connected to the terminal controller through a terminal signal conditioning circuit, the terminal magnetic transmitter is connected to the output end of the terminal controller through a terminal transmission driver and sends a magnetic pulse signal to the ground command center, and the terminal HMI human-machine interface is connected to the communication interface of the terminal controller.

[0009] The above-mentioned magnetic communication device, the ground command center includes a central controller, a central magnetic receiver, a central magnetic transmitter, a central HMI human-machine interface and a computer, the central magnetic receiver receives the magnetic pulse signal sent by the underground communication terminal and is connected to the central controller through the central signal conditioning circuit, the central magnetic transmitter is connected to the output end of the central controller through the central transmission driver and sends a magnetic pulse signal to the underground communication terminal, the central HMI human-machine interface is connected to the communication interface of the central controller, and the computer is connected to the communication interface of the central controller through a communication cable.

[0010] The above-mentioned magnetic communication device has one or more relay devices between the ground command center and the underground communication terminal. The relay device includes a relay controller, a relay magnetic receiver and a relay magnetic transmitter. The relay magnetic receiver receives the magnetic pulse signal sent by the ground command center or the underground communication terminal or receives the magnetic pulse signal forwarded by the adjacent relay device and is connected to the relay controller through the relay signal conditioning circuit. The relay magnetic transmitter is connected to the output end of the relay controller through the relay transmission driver and sends the magnetic pulse signal to the ground command center or the underground communication terminal or the adjacent relay device.

[0011] The above-mentioned magnetic communication device, the terminal magnetic transmitter, the central magnetic transmitter and the relay magnetic transmitter have the same structure, and all include a driving motor, a reduction mechanism, a coupling, a rotating shaft and a permanent magnet. The control cable of the driving motor is connected to the terminal transmission driver or the central transmission driver or the relay transmission driver. The input shaft of the reduction mechanism is connected to the output shaft of the driving motor. The output shaft of the reduction mechanism is connected to the rotating shaft through the coupling, and the permanent magnet is fixed on the rotating shaft.

[0012] In the magnetic communication device, the permanent magnet is a horizontally placed bar magnet, the rotating shaft is placed vertically, the lower end of which is connected to the output shaft of the reduction mechanism through a coupling, and the upper end is connected to the middle of the permanent magnet, an annular support plate is loosely sleeved in the middle of the rotating shaft, and the annular support plate is fixedly connected to the outer shell of the reduction mechanism, and a roller is respectively provided at both ends of the permanent magnet, and the outer edge of the roller is in contact with the upper surface of the annular support plate.

[0013] In the magnetic communication device, a plurality of permanent magnets are provided, a plurality of permanent magnet fixing seats are evenly inlaid on the cylindrical surface of the rotating shaft, a permanent magnet is inlaid in each permanent magnet fixing seat, and the permanent magnet fixing seat is a cylinder or a cuboid.

[0014] The above-mentioned magnetic communication device, the underground communication terminal also includes a terminal voice and text module, the terminal voice and text module is connected to the terminal controller through the terminal input signal processing module, and the ground command center also includes a central voice and text module, the central voice and text module is connected to the central controller through the central input signal processing module.

[0015] In the above-mentioned magnetic communication device, the terminal magnetic receiver, the central magnetic receiver and the relay magnetic receiver have the same structure, and are all solenoids or Hall sensors.

[0016] In the magnetic communication device, the central controller, terminal controller and relay controller have the same structure, and are all single-chip microcomputers or microprocessors.

[0017] In the above-mentioned magnetic communication device, the power source of the ground command center, underground communication terminal and relay equipment is a battery.

[0018] The present invention uses magnetic pulse signals to transmit mine emergency rescue information. It not only has strong anti-interference ability and good communication quality, but also the signal transmission does not rely on underground cables and pipelines and other facilities, which greatly improves the flexibility of communication device deployment. The device can improve communication quality and disaster relief efficiency, and can meet the communication requirements of mine emergency rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a structural block diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the ground command center;

[0022] Figure 3 It is a schematic diagram of the structure of the underground communication terminal;

[0023] Figure 4 It is a schematic diagram of the structure of the relay equipment;

[0024] Figure 5 is a first embodiment of a terminal magnetic transmitter, a central magnetic transmitter and a relay magnetic transmitter, wherein Figure 5 (a) is the appearance diagram, Figure 5 (b) is a cross-sectional view;

[0025] Figure 6 It is the second embodiment of the terminal magnetic transmitter, the central magnetic transmitter and the relay magnetic transmitter.

[0026] The numbers in the figure are: Z1, center controller, Z2, center transmitting driver, Z3, center transmitting device, Z4, center receiving device, Z5, center signal conditioning circuit, Z6, center input signal processing module, Z7, center HMI human-machine interface, Z8, center voice and text module, Z9, center power supply, Z10, computer, D1, terminal controller, D2, terminal transmitting driver, D3, terminal magnetic transmitter, D4, terminal magnetic receiver, D5, terminal signal conditioning circuit, D6, terminal input Input signal processing module, D7, terminal HMI human-machine interface, D8, terminal voice and text module, D9, terminal power supply, J1, relay controller, J2, relay transmitter driver, J3, relay transmitter, J4, relay receiver, J5, relay signal conditioning circuit, J9, relay power supply, 3-1, drive motor, 3-2, reduction mechanism, 3-3, coupling, 3-4, rotating shaft, 3-5, permanent magnet, 3-6, roller, 3-7, annular support plate, 3-8, support frame, 3-9, bearing. DETAILED DESCRIPTION

[0027] The present invention provides a multifunctional mine emergency rescue communication device which can be deployed quickly, flexibly and independently. The device can form a digital communication network quickly between the rescue command center and the trapped persons at the underground accident site by self-organization and self-healing methods, supports wireless and wireless plus wired combined methods for signal relay and transmission, can provide a mobile two-way multimedia communication contact and dispatch command channel including voice and text between the rescue command personnel and the trapped persons underground, and can realize information recording.

[0028] See also Figure 1-Figure 4 The present invention mainly includes a ground command center, a relay device and an underground communication terminal, and the underground communication terminal is placed in an emergency shelter in a mine. The relay device can be provided with multiple sets, and the specific number can be set according to the needs of the site.

[0029] The ground command center includes a central controller Z1, a central transmitting driver Z2, a central magnetic transmitter Z3, a central magnetic receiver Z4, a central signal conditioning circuit Z5, a central input signal processing module Z6, a central HMI human-machine interface Z7, a central voice and text module Z8, a central power supply Z9 and a computer Z10.

[0030] The underground communication terminal consists of a terminal controller D1, a terminal transmitting driver D2, a terminal magnetic transmitter D3, a terminal magnetic receiver D4, a terminal signal conditioning circuit D5, a terminal input signal processing module D6, a terminal HMI human-machine interface D7, a terminal voice and text module D8 and a terminal power supply D9.

[0031] The relay device includes a relay controller J1, a relay transmitting driver J2, a relay transmitting device J3, a relay receiving device J4, a relay signal conditioning circuit J5 and a relay power supply J9.

[0032] The central controller Z1, the terminal controller D1 and the relay controller J1 are single chip microcomputers or microprocessors.

[0033] The terminal magnetic receiver D4, the central magnetic receiver Z4 and the relay magnetic receiver J4 are magnetic sensitive sensors based on the giant magneto-impedance effect and having axial collection characteristics, and may be solenoids or Hall sensors.

[0034] Figure 5 The first embodiment of the terminal magnetic transmitter D3, the central magnetic transmitter Z3 and the relay magnetic transmitter J3 comprises a drive motor 3-1, a reduction mechanism 3-2, a coupling 3-3, a rotating shaft 3-4, a permanent magnet 3-5, a roller 3-6 and an annular support plate 3-7. The control cable of the drive motor 3-1 is connected to the terminal transmitting driver D2 or the central transmitting driver Z2 or the relay transmitting driver J2. The input shaft of the reduction mechanism 3-2 is connected to the output shaft of the drive motor 3-1. The permanent magnet The body 3-5 is a horizontally placed bar magnet, the rotating shaft 3-4 is placed vertically, the lower end of which is connected to the output shaft of the reduction mechanism 3-2 through a coupling 3-3, and the upper end is connected to the middle part of the permanent magnet 3-5, and an annular support plate 3-7 is loosely sleeved in the middle part of the rotating shaft 3-4, and the annular support plate 3-7 is fixedly connected to the outer shell of the reduction mechanism 3-2, and a supporting roller 3-6 is respectively provided at both ends of the permanent magnet 3-5, and the outer edge of the roller 3-6 is in contact with the upper surface of the annular support plate 3-7.

[0035] The roller 3-6 can use ceramic bearings, and the driving motor 3-1 is a variable frequency motor, a stepping motor or a servo motor. The driving motor 3-1 drives the rotating shaft 3-4 to rotate through the reduction mechanism 3-2 and the coupling 3-3, so that the permanent magnet 3-5 rotates to generate a magnetic field. The permanent magnet 3-5 is composed of multiple permanent magnets and is placed on a non-metallic annular support plate 3-7. The number of permanent magnets can be set according to different transmission distances.

[0036] Figure 6It is a second embodiment of the terminal magnetic transmitter D3, the central magnetic transmitter Z3 and the relay magnetic transmitter J3, including a drive motor 3-1, a reduction mechanism 3-2, a coupling 3-3, a rotating shaft 3-4, a permanent magnet 3-5, a support frame 3-8 and a bearing 3-9. The control cable of the drive motor 3-1 is connected to the terminal transmitting driver D2 or the central transmitting driver Z2 or the relay transmitting driver J2. The input shaft of the reduction mechanism 3-2 is connected to the output shaft of the drive motor 3-1. The output shaft of the reduction mechanism 3-2 is connected to the rotating shaft 3-4 through the coupling 3-3. A plurality of permanent magnets 3-5 are arranged. A plurality of permanent magnet fixing seats (not shown in the figure) are evenly inlaid on the cylindrical surface of the rotating shaft 3-4. A permanent magnet 3-5 is inlaid in each permanent magnet fixing seat, and the permanent magnet fixing seat is a cylinder or a cuboid.

[0037] The central power supply Z9, terminal power supply D9 and relay power supply J9 are all batteries.

[0038] The trapped personnel underground input information such as the location of the trapped personnel, the number of trapped personnel, and the surrounding conditions to the terminal controller D1 through the terminal voice and text module D8 or the terminal HMI human-machine interface D7. The terminal controller D1 comprehensively processes the information and sends the input voice and text signals to the terminal transmitting driver D2. The terminal transmitting driver D2 drives the permanent magnets 3-5 by controlling the terminal magnetic transmitter D3 to generate a certain sequence of magnetic signals, which are then received by the relay receiving device J4 of the relay device. The relay controller J1 of the relay device receives and processes the signal output by the relay signal conditioning circuit J5, and sends the received communication information to the next relay device through the relay transmitting driver J2 and the relay transmitting device J3. After the relay transmission of multiple relay devices, the information of the trapped personnel underground is finally received by the ground command center.

[0039] The terminal input signal processing module D6 converts the information input by the terminal voice and text module D8 (such as location, number of trapped persons, condition of injured persons, etc.) into binary code, which corresponds to the input information one by one. After receiving the binary code sent by the terminal input signal processing module D6, the terminal controller D1 compares and processes it with the information in its own database, and sends the processed information to the terminal transmitting driver D2 in the form of binary code. The terminal magnetic transmitter D3 drives the permanent magnet 3-5 to rotate according to the information output by the terminal transmitting driver D2. The magnetic signal of a certain sequence generated by the permanent magnet 3-5 is a square pulse wave. After the relay receiving device J4 or the central magnetic receiver Z4 receives the pulse wave magnetic field, it is analyzed by the signal conditioning circuit and sent to the controller. The central controller Z1 compares and processes the received information with the information in its own database and displays it through the HMI human-machine interface.

[0040] In summary, the present invention can be deployed quickly, flexibly and independently, and can form a digital communication network quickly between the ground command center and the trapped personnel underground by self-organization and self-healing methods, and support two methods of wireless and wireless plus wired for signal relay and transmission. Therefore, it can provide reliable mobile two-way multimedia communication and dispatch command channels including voice and text between rescue command personnel and trapped personnel underground, thereby greatly improving the effect of mine emergency rescue; the present invention can independently form a fully functional, ready-to-use emergency communication network, and the trapped personnel underground can transmit the number of personnel on the scene, the surrounding situation and other information to the ground command center in real time through voice, text, etc., and the rescue dispatch command personnel can understand the situation on the scene in real time, clearly and accurately, and dispatch and command the personnel on the scene; the present invention can record multimedia information such as audio and text of the entire disaster relief process, which is convenient for quantitative analysis of the accident and disaster situation after the disaster and summary of experience in the disaster relief process.

[0041] The above embodiments are descriptions of specific implementation methods of the present invention rather than limitations of the present invention. Technical personnel in the relevant technical field can make various changes and modifications to obtain corresponding equivalent technical solutions without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should be included in the patent protection scope of the present invention.

Claims

1. A magnetic communication device, characterized in that: The invention comprises a ground command center and an underground communication terminal, wherein the underground communication terminal comprises a terminal controller (D1), a terminal magnetic receiver (D4), a terminal magnetic transmitter (D3) and a terminal HMI human-machine interface (D7); the terminal magnetic receiver (D4) receives a magnetic pulse signal sent by the ground command center and is connected to the terminal controller (D1) through a terminal signal conditioning circuit (D5); the terminal magnetic transmitter (D3) is connected to the output end of the terminal controller (D1) through a terminal transmission driver (D2) and sends a magnetic pulse signal to the ground command center; and the terminal HMI human-machine interface (D7) is connected to a communication interface of the terminal controller (D1); The ground command center comprises a central controller (Z1), a central magnetic receiving device (Z4), a central magnetic transmitting device (Z3), a central HMI human-machine interface (Z7) and a computer (Z10); the central magnetic receiving device (Z4) receives a magnetic pulse signal sent by an underground communication terminal and is connected to the central controller (Z1) through a central signal conditioning circuit (Z5); the central magnetic transmitting device (Z3) is connected to the output end of the central controller (Z1) through a central transmitting driver (Z2) and sends a magnetic pulse signal to the underground communication terminal; the central HMI human-machine interface (Z7) is connected to a communication interface of the central controller (Z1); and the computer (Z10) is connected to the communication interface of the central controller (Z1) through a communication cable; One or more relay devices are arranged between the ground command center and the underground communication terminal, and the relay device comprises a relay controller (J1), a relay receiving device (J4) and a relay transmitting device (J3); the relay receiving device (J4) receives a magnetic pulse signal sent by the ground command center or the underground communication terminal or receives a magnetic pulse signal forwarded by an adjacent relay device and is connected to the relay controller (J1) through a relay signal conditioning circuit (J5); the relay transmitting device (J3) is connected to the output end of the relay controller (J1) through a relay transmitting driver (J2) and transmits a magnetic pulse signal to the ground command center or the underground communication terminal or an adjacent relay device; The terminal magnetic transmitter (D3), the central magnetic transmitter (Z3) and the relay transmitter (J3) have the same structure, and all include a driving motor (3-1), a speed reduction mechanism (3-2), a coupling (3-3), a rotating shaft (3-4) and a permanent magnet (3-5); the control cable of the driving motor (3-1) is connected to the terminal transmitter driver (D2) or the central transmitter driver (Z2) or the relay transmitter driver (J2); the input shaft of the speed reduction mechanism (3-2) is connected to the output shaft of the driving motor (3-1); the output shaft of the speed reduction mechanism (3-2) is connected to the rotating shaft (3-4) through the coupling (3-3); and the permanent magnet (3-5) is fixed on the rotating shaft (3-4).

2. A magnetic communication device according to claim 1, characterized in that: The permanent magnet (3-5) is a horizontally placed bar magnet. The rotating shaft (3-4) is placed vertically. The lower end of the rotating shaft (3-4) is connected to the output shaft of the speed reduction mechanism (3-2) through a coupling (3-3). The upper end is connected to the middle of the permanent magnet (3-5). An annular support plate (3-7) is loosely sleeved in the middle of the rotating shaft (3-4). The annular support plate (3-7) is fixedly connected to the outer shell of the speed reduction mechanism (3-2). A roller (3-6) is respectively provided at both ends of the permanent magnet (3-5). The outer edge of the roller (3-6) contacts the upper surface of the annular support plate (3-7).

3. A magnetic communication device according to claim 1, characterized in that: A plurality of permanent magnets (3-5) are provided, and a plurality of permanent magnet fixing seats are evenly inlaid on the cylindrical surface of the rotating shaft (3-4), and a permanent magnet (3-5) is inlaid in each permanent magnet fixing seat. The permanent magnet fixing seat is a cylinder or a cuboid.

4. A magnetic communication device according to claim 1, characterized in that: The underground communication terminal also includes a terminal voice and text module (D8), and the terminal voice and text module (D8) is connected to the terminal controller (D1) through the terminal input signal processing module (D6). The ground command center also includes a central voice and text module (Z8), and the central voice and text module (Z8) is connected to the central controller (Z1) through the central input signal processing module (Z6).

5. A magnetic communication device according to claim 1, characterized in that: The terminal magnetic receiver (D4), the central magnetic receiving device (Z4) and the relay receiving device (J4) have the same structure and are all solenoids or Hall sensors.

6. A magnetic communication device according to claim 1, characterized in that: The central controller (Z1), the terminal controller (D1) and the relay controller (J1) have the same structure and are all single chip microcomputers or microprocessors.

7. A magnetic communication device according to claim 1, characterized in that: The power source of the ground command center, underground communication terminal and relay equipment is a battery.

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