Wireless Relay Explosion-proof Communication System for Gas Tunnels

Abstract

The present invention discloses a wireless relay explosion-proof communication system for a gas tunnel, which includes a main station and an intelligent terminal placed outside the gas tunnel, as well as intrinsically safe terminals and a number of relay units placed inside the gas tunnel; the number of relay units are arranged at intervals along the gas tunnel in sections and are communicatively connected to each other, the main station is communicatively connected to the relay units, and a communication network is constructed inside the gas tunnel through the number of relay units; the intelligent terminal is communicatively connected to the main station and enters a state to be matched; the intrinsically safe terminal is communicatively connected to any one of the relay units and is correspondingly matched and connected to the intelligent terminal through the main station; the intrinsically safe terminal is configured to remotely control the intelligent terminal after being communicatively connected to the intelligent terminal, and send communication information to the intelligent terminal and receive communication information sent by the intelligent terminal. The present invention can ensure the construction safety inside the gas tunnel, improve the data communication accuracy and communication efficiency inside the gas tunnel, and effectively avoid the risk of privacy leakage.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile communication in flammable and explosive environments, and particularly to a wireless relay explosion-proof communication system for gas tunnels. Background Art

[0002] In coal mine extraction operations, workers often need to carry out construction operations inside the mine. Due to complex terrain, severe electromagnetic interference during construction operations, and the presence of flammable and explosive gases in the mine environment, it is difficult for workers inside the mine to communicate information internally and externally. To solve the above problems, various intrinsically safe explosion-proof mobile phones have been developed in the prior art. By adding protection circuits, increasing the line spacing of circuit boards, shielding and encapsulating electronic components, and using special materials to manufacture the mobile phone housing and other measures to ensure that the electronic components inside the mobile phone, even in the event of a short circuit and failure, generate insufficient energy to form an effective ignition source, thus ensuring the safety of users in flammable and explosive environments.

[0003] To ensure the consistency and safety of intrinsically safe explosion-proof mobile phones, it is necessary to uniformly purchase and manage such explosion-proof mobile phones. Therefore, before going down the mine, workers need to lock their mobile phones into a classified and marked safe, and then carry the distributed mine-use mobile phones down the mine. However, in this case, to avoid affecting the timeliness of message reception, workers need to remove the SIM card from their own mobile phones and replace it in the mine-use mobile phone. The operation of changing the mobile phone terminal not only loses various information in their own mobile phones, such as address books, chat records, call records, etc., and privacy risks are precisely one of the greatest risks faced by today's social groups. With the improvement of people's privacy protection awareness, it is difficult to accept leaving one's private information on a mobile phone that does not belong to oneself. Even though the functions of mine-use mobile phones are becoming more and more perfect and various practical functions are attached based on the specific usage environment, people still have great rejection and resistance to them. Summary of the Invention

[0004] Based on this, it is necessary to provide a wireless relay explosion-proof communication system for gas tunnels in view of the above problems, which can ensure the construction safety inside the mine and effectively avoid the risk of privacy leakage while meeting communication efficiency and economic benefits.

[0005] The present invention is achieved through the following technical solutions:

[0006] A wireless relay explosion-proof communication system for gas tunnels, comprising a master station and an intelligent terminal placed outside the gas tunnel, and an intrinsically safe terminal and several relay units placed inside the gas tunnel; several relay units are arranged at intervals along the gas tunnel in sections, and the several relay units are communicatively connected to each other, the master station is communicatively connected to the relay units, and a communication network is constructed inside the gas tunnel through the several relay units; the intelligent terminal is communicatively connected to the master station and enters a state to be matched; the intrinsically safe terminal is communicatively connected to any one of the relay units and is correspondingly matched and connected to the intelligent terminal through the master station; the intrinsically safe terminal is configured to remotely control the intelligent terminal after being communicatively connected to the intelligent terminal, and send communication information to the intelligent terminal and receive the communication information sent by the intelligent terminal.

[0007] In one embodiment, the way of communication connection includes wireless communication connection; the wireless communication connection includes WIFI communication connection or Bluetooth communication connection, and the corresponding communication network is a wireless Mesh network or a Bluetooth Mesh network.

[0008] In one embodiment, the communication information includes text information, graphic information, video information and / or voice information.

[0009] In one embodiment, the master station includes a host, a display and touch device, and a separate storage box for storing the intelligent terminal. The host is configured to integrate logical control operation, authentication information distribution and wireless communication functions, and is electrically connected to the display and touch device for manual control operation through the display and touch device; the intrinsically safe terminal has an independent terminal identifier and corresponding authentication information. After the host is communicatively connected to the intelligent terminal, it distributes the authentication information to the intelligent terminal, and the intelligent terminal matches and connects to the corresponding intrinsically safe terminal based on the authentication information.

[0010] In one embodiment, the separate storage box includes several independent storage cabinets. A password lock is preset for each storage cabinet corresponding to the host, and the corresponding storage cabinet is unlocked by inputting a password through the display and touch device.

[0011] In one embodiment, the intrinsically safe terminal has an explosion-proof enclosure and is equipped with a touch operation screen; the explosion-proof enclosure is internally provided with an operation control module, a voice call module, a wireless communication module, intrinsically safe circuits and a battery pack, and is wirelessly communicatively connected to the relay unit or the master station through the wireless communication module.

[0012] In one embodiment, the relay unit has an explosion-proof enclosure. The explosion-proof enclosure is internally provided with a logical operation module, a wireless communication module, intrinsically safe circuits and a battery pack. The several relay units are wirelessly communicatively connected to each other through the wireless communication module, and are powered by connecting to the master station through Class I explosion-proof lines.

[0013] In one embodiment, the relay unit further includes a touch display module and an intercom call module, and realizes wireless intercom communication with other relay units or intrinsically safe terminals through the touch display module and the intercom call module.

[0014] In one embodiment, the communication connection method further includes a wired communication connection, and several relay units are interconnected through network cabling for wired communication.

[0015] In one embodiment, the relay unit and the intrinsically safe terminal are respectively provided with RJ11 interfaces. A telephone line is connected to the RJ11 interface of the relay unit, and the relay unit is correspondingly connected to the RJ11 interfaces of the intrinsically safe terminal and other relay units through the telephone line for wired communication.

[0016] Compared with the prior art, the technical solution of the present invention has at least the following advantages and beneficial effects:

[0017] The system of the present invention has a simple structure and reasonable design. On the one hand, it can effectively overcome the defects of complex terrain environments while meeting communication efficiency and economic benefits, ensure smooth communication, and all communication devices inside the gas tunnel are equipped with explosion-proof functions, which can guarantee the construction safety inside the gas tunnel; on the other hand, it can also effectively avoid the risk of privacy leakage and realize the application of all communication functions of intelligent terminals inside the gas tunnel, greatly improving the data communication accuracy and communication efficiency inside the gas tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 Schematic diagram of the architecture of the wireless relay explosion-proof communication system provided by the embodiment of the present invention Figure 1 ;

[0020] Figure 2 Schematic diagram of the architecture of the wireless relay explosion-proof communication system provided by the embodiment of the present invention Figure 2 ;

[0021] Figure 3 Schematic diagram of the application of the wireless relay explosion-proof communication system provided by the embodiment of the present invention;

[0022] Figure 4 Block diagram of the structure of the intrinsically safe terminal provided by the embodiment of the present invention;

[0023] Figure 5 The structural block diagram of the relay unit provided by the embodiment of the present invention;

[0024] Figure 6 The structural schematic diagram of the master station provided by the embodiment of the present invention.

[0025] Icon: 1 - Master station, 11 - Display touch device, 12 - Detachable storage box, 121 - Storage cabinet, 2 - Smart terminal, 3 - Intrinsically safe terminal, 31 - Touch operation screen, 32 - Operation control module, 33 - Voice call module, 4 - Relay unit, 41 - Logic operation module, 42 - Touch display module, 43 - Intercom call module, 44 - RJ45 interface, 5 - Class I explosion-proof line, 6 - Gas tunnel, 71 - Wireless communication module, 72 - Battery pack, 73 - RJ11 interface. Specific embodiments

[0026] To make the objectives, technical solutions and advantages of the present invention clearer, the following will, with reference to the accompanying drawings in the embodiments of the present invention, describe a wireless relay explosion-proof communication system for a gas tunnel more clearly and completely. The preferred embodiments of the wireless relay explosion-proof communication system for a gas tunnel are shown in the accompanying drawings. However, the wireless relay explosion-proof communication system for a gas tunnel can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the wireless relay explosion-proof communication system for a gas tunnel more thorough and comprehensive.

[0027] It should be noted that: Similar reference numerals and letters denote similar items in the following accompanying drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0028] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, all the technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs.

[0029] In the description of the present invention, it should also be noted that the terms "set", "installed", "connected" and "coupled" used herein should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Such as Figures 1 to 6As shown in the figure, the present invention provides a wireless relay explosion-proof communication system for use in chemical mining environments, such as gas tunnels 6, etc. It includes a main station 1 and an intelligent terminal 2 placed outside the gas tunnel 6, as well as an intrinsically safe terminal 3 and several relay units 4 placed inside the gas tunnel 6; several relay units 4 are arranged at intervals along the gas tunnel 6 in sections, and several relay units 4 communicate with each other. The main station 1 is communicatively connected to the relay units 4, and a communication network is constructed inside the gas tunnel 6 through several relay units 4; the intelligent terminal 2 is communicatively connected to the main station 1 and enters a waiting-to-be-matched state; the intrinsically safe terminal 3 is communicatively connected to any one of the relay units 4, is connected to the main station 1 through the communication network, and is correspondingly matched and connected to the intelligent terminal 2 through the main station 1; the intrinsically safe terminal 3 is configured to be able to perform remote control operations on the intelligent terminal 2 after being communicatively connected to the intelligent terminal 2, that is, remotely control the desktop of the intelligent terminal 2, and further realize the operation of the intelligent terminal 2. Moreover, the intrinsically safe terminal 3 can send communication information to the intelligent terminal 2 and receive communication information sent by the intelligent terminal 2 during the remote control process. The communication information includes but is not limited to text information, graphic information, video information, and / or voice information, etc. However, the intrinsically safe terminal 3 does not store the sent and received communication information. It only serves as an operation terminal to implement the operation process, and the sending and receiving records of the communication information are stored in the intelligent terminal 2. In this way, not only the retention of the communication information on the intelligent terminal 2 is ensured, but also the risk of privacy leakage is avoided.

[0031] It can be understood that the above intelligent terminal 2 is a smart phone, and it can also be but is not limited to various personal computers, laptop computers, tablet computers, and portable wearable devices with communication functions.

[0032] Furthermore, as Figure 1 and Figure 2 shown, based on the above usage environment, the communication connection methods that can be adopted include wireless communication connection. Wireless communication modules 71 are configured in the main station 1, intelligent terminal 2, relay unit 4, and intrinsically safe terminal 3, and wireless communication connections are made based on the wireless communication modules 71; the wireless communication connection methods include WIFI communication connection or Bluetooth communication connection. The corresponding wireless communication modules 71 are WIFI modules or Bluetooth modules, and the corresponding communication network is a wireless Mesh network or a Bluetooth Mesh network.

[0033] Based on the above usage environment and communication requirements, the basic structural compositions of the intrinsically safe terminal 3, relay unit 4, and main station 1 will be further specifically described below.

[0034] As Figure 4As shown in the figure, the intrinsically safe terminal 3 has an explosion-proof enclosure. The explosion-proof enclosure is made of a fully rubber-sealed dust-proof enclosure and soft plastic connectors, and is equipped with an enclosure temperature control and cooling function. The explosion-proof enclosure is equipped with a touch operation screen 31; the explosion-proof enclosure is internally provided with an operation control module 32, a voice call module 33, a wireless communication module 71, intrinsically safe circuits and a battery pack 72. The operation control module 32 is a CPU module, which is electrically connected to other modules of the intrinsically safe terminal 3 to perform signal and data processing, transmission and implementation control. The wireless communication module 71 is a WIFI module or a Bluetooth module, and is wirelessly communicatively connected to the relay unit 4 or the master station 1 through the wireless communication module 71; after being paired and connected to the intelligent terminal 2, the intelligent terminal 2 is remotely operated and controlled through the touch operation screen 31. The operation process is realized on the touch operation screen 31, and the data content generated by the operation is implemented and stored in the intelligent terminal 2. Moreover, the intrinsically safe terminal 3 can receive and input voice information through the voice call module 33 and relay it to the intelligent terminal 2 for sending. In addition, a vibration module, a signal indicator module, a camera module, etc. can also be configured inside the intrinsically safe terminal 3 to have functions such as vibration function, signal lamp indication function, and camera function for obtaining real-time images of the underground space of the mine.

[0035] As Figure 5 shown in the figure, the relay unit 4 has an explosion-proof enclosure. The explosion-proof enclosure is internally provided with a logic operation module 41, a wireless communication module 71, intrinsically safe circuits and a battery pack 72. The operation control module 32 is a CPU module, which is electrically connected to other modules of the relay unit 4 to perform signal and data processing, transmission and implementation control. The wireless communication module 71 is a WIFI module or a Bluetooth module. A number of relay units 4 can be wirelessly communicatively connected through the wireless communication module 71, so that the wireless network covers the entire gas tunnel 6, and is powered through a Class I explosion-proof line 5 connected to the master station 1.

[0036] As Figure 6 shown in the figure, the master station 1 includes a host, a display and touch device 11 and a separate storage box 12 for storing the intelligent terminal 2. The host is configured to integrate logic control operation, authentication information distribution and wireless communication functions, and is electrically connected to the display and touch device 11, and manual control operations are performed through the display and touch device 11, such as matching and connecting operations for the intelligent terminal 2 and the intrinsically safe terminal 3.

[0037] Specifically, the above authentication information can be account information or communication IP address. The matching connection operation between the intelligent terminal 2 and the intrinsically safe terminal 3 is as follows: The intrinsically safe terminal 3 has an independent terminal identifier and corresponding authentication information, and the intrinsically safe terminal 3 is communicatively connected to the host through the relay unit 4 or directly communicatively connected to the host. Its independent terminal identifier and corresponding authentication information are stored in the host. After the intelligent terminal 2 is communicatively connected to the host, the host assigns authentication information to the intelligent terminal 2. The intelligent terminal 2 matches and connects to the intrinsically safe terminal 3 corresponding to the authentication information based on the authentication information, and can remotely control and operate the intelligent terminal 2 through the intrinsically safe terminal 3.

[0038] Further, as Figure 6 shown, the detachable storage box 12 is provided with a password lock. The host presets a password for each storage cabinet 121. The corresponding storage cabinet 121 is unlocked by inputting the password through the display touch device 11 to further improve privacy and security. It can be understood that the above password can be a character password (including a numeric password and a text password), a gesture password, or a fingerprint password. In addition, before the intelligent terminal 2 is placed in the storage cabinet 121, the intrinsically safe terminal 3 can be separately placed in each storage cabinet 121. After the intelligent terminal 2 is communicatively connected to the host, the host assigns authentication information to the intelligent terminal 2 and opens the storage cabinet 121 where the corresponding intrinsically safe terminal 3 is stored, takes out the intrinsically safe terminal 3, and places the intelligent terminal 2 for storage. Therefore, preferably, the authentication information of the intrinsically safe terminal 3 (such as account information or communication IP address) can be used as the character password to unlock the storage cabinet 121.

[0039] Further, as Figure 5 shown, the relay unit 4 further includes a touch display module 42 and an intercom module 43, and realizes wireless intercom communication with other relay units 4 or the intrinsically safe terminal 3 through the touch display module 42 and the intercom module 43.

[0040] In addition, based on the above usage environment, the communication connection methods that can be adopted also include wired communication connection. The relay unit 4 is provided with an RJ45 interface 44 to connect to a network cable, and several relay units 4 are interconnected through network cabling for wired communication to serve as an emergency communication line for rescue in case of an emergency in the tunnel. It can be understood that the network cable is designed with reference to Class I explosion protection.

[0041] Further, as Figure 4 and Figure 5 shown, the relay unit 4 and the intrinsically safe terminal 3 are respectively provided with RJ11 interfaces 73. A telephone line is connected to the RJ11 interface 73 of the relay unit 4, and the relay unit 4 is connected to the RJ11 interfaces 73 of the intrinsically safe terminal 3 and other relay units 4 through the telephone line for wired communication.

[0042] It can be understood that when a wireless communication connection is adopted, the lengths of the several relay units 4 arranged at segmented intervals are reasonably arranged at intervals based on the signal transmission distance of the wireless communication module 71 of the relay unit; when a wired communication connection is adopted, the lengths of the several relay units 4 arranged at segmented intervals are 150 meters to 200 meters. For example, a relay unit 4 is arranged every 200 meters starting from the entrance of the gas tunnel 6, and the deepest is arranged at the secondary lining trolley or the fan outlet.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A wireless relay explosion-proof communication system for gas tunnels, characterized in that, it includes a master station and an intelligent terminal placed outside the gas tunnel, and an intrinsically safe terminal and several relay units placed inside the gas tunnel; several of the relay units are arranged at intervals in sections along the gas tunnel, and several of the relay units are communicatively connected to each other, the master station is communicatively connected to the relay units, and a communication network is constructed inside the gas tunnel through several of the relay units; the intelligent terminal is communicatively connected to the master station and enters a waiting-to-match state; the intrinsically safe terminal is communicatively connected to any one of the relay units and is correspondingly matched and connected to the intelligent terminal through the master station; the intrinsically safe terminal is configured to remotely control the intelligent terminal after being communicatively connected to the intelligent terminal, and send communication information to the intelligent terminal and receive communication information sent by the intelligent terminal; the master station includes a host, a display and touch device, and a detachable storage box for storing the intelligent terminal. The host is configured to integrate logic control operation, authentication information distribution and wireless communication functions, and is electrically connected to the display and touch device for manual control operation; the intrinsically safe terminal has an independent terminal identifier and corresponding authentication information. After the host is communicatively connected to the intelligent terminal, it distributes authentication information to the intelligent terminal, and the intelligent terminal is matched and connected to the corresponding intrinsically safe terminal based on the authentication information.

2. The wireless relay explosion-proof communication system for gas tunnels according to claim 1, characterized in that, the way of the communication connection includes wireless communication connection; the wireless communication connection includes WIFI communication connection or Bluetooth communication connection, and the corresponding communication network is a wireless Mesh network or a Bluetooth Mesh network.

3. The wireless relay explosion-proof communication system for gas tunnels according to claim 1, characterized in that, the communication information includes text information, graphic information, video information and / or voice information.

4. The wireless relay explosion-proof communication system for gas tunnels according to claim 1, characterized in that, the detachable storage box includes several independent storage cabinets, and a password lock is preset for the host corresponding to each storage cabinet, and the corresponding storage cabinet is unlocked by inputting a password through the display and touch device.

5. The wireless relay explosion-proof communication system for gas tunnels according to claim 1, characterized in that, the intrinsically safe terminal has an explosion-proof enclosure and is equipped with a touch operation screen; the explosion-proof enclosure is internally provided with an operation control module, a voice call module, a wireless communication module, intrinsically safe circuits and a battery pack, and is wirelessly communicatively connected to the relay unit or the master station through the wireless communication module.

6. The wireless relay explosion-proof communication system for gas tunnels according to claim 5, characterized in that, the relay unit has an explosion-proof enclosure, the explosion-proof enclosure is internally provided with a logic operation module, a wireless communication module, intrinsically safe circuits and a battery pack, and several of the relay units are wirelessly communicatively connected to each other through the wireless communication module and are powered by connecting to the master station through Class I explosion-proof lines.

7. The wireless relay explosion-proof communication system for gas tunnels according to claim 6, characterized in that, the relay unit further includes a touch display module and an intercom call module, and realizes wireless intercom communication with other relay units or intrinsically safe terminals through the touch display module and the intercom call module.

8. The wireless relay explosion-proof communication system for gas tunnels according to claim 7, characterized in that, the communication connection method further includes a wired communication connection, and several relay units are interconnected through network cabling for wired communication.

9. The wireless relay explosion-proof communication system for gas tunnels according to claim 8, characterized in that, the relay unit and the intrinsically safe terminal are respectively provided with RJ11 interfaces, a telephone line is connected to the RJ11 interface of the relay unit, and the relay unit is connected to the RJ11 interfaces of the intrinsically safe terminal and other relay units through the telephone line for wired communication.

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