Mining intrinsic safety type base station

Abstract

The utility model provides a mining intrinsic safety type base station, which relates to the technical field of intrinsic safety type communication base stations and comprises an outer shell, a radio frequency antenna, a bus board, a wireless communication module, a positioning module, a network switching module, a bus access module and a display module, the bus board is electrically connected with other function modules, the network switching module comprises a network switching board, the network switching board is provided with a photoelectric port, the bus access module comprises an acquisition control board, the acquisition control board supports RS485 and CAN bus access, and the communication mode is half-duplex; the wireless communication module and the positioning module are electrically connected with the radio frequency antenna through feeder lines and through the antenna port. The outer shell is provided with a plurality of communication interfaces, and the outer shell is provided with a grounding bolt. The base station integrates multiple functions of wireless communication, positioning, network exchange and the like, an independent wiring configuration system is not needed, the total cost and complexity of the base station are reduced, and later troubleshooting and tracking are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of intrinsically safe communication base stations, and particularly relates to a mine-used intrinsically safe base station. Background Art

[0002] At present, many mines have equipped with 4G wireless communication systems and deployed 4G communication sub-stations underground. However, in most cases, gigabit bandwidth networking is only used for 4G signal transmission, resulting in a great waste of the remaining network bandwidth resources. In addition, there are various independent monitoring and control systems distributed in the mine, such as monitoring and control systems, personnel positioning systems, mine pressure monitoring systems, production monitoring systems, and video monitoring systems, etc. These systems all need to be independently wired and installed with equipment underground, which not only causes repeated construction underground, increases costs, but also faces the problem of migrating system sub-stations and cables when the mining face moves. This undoubtedly increases the operation burden. More importantly, the independent network architectures of each subsystem bring challenges to subsequent operation and maintenance. For example, fault troubleshooting becomes complex, and the positions of equipment are difficult to track, which also makes the coordination of technical support more difficult. Content of the Utility Model

[0003] Aiming at the deficiencies existing in the above-mentioned prior art, the utility model provides a mine-used intrinsically safe base station, which solves the technical problems of independent arrangement of various monitoring systems and control systems in the mine in the prior art, great operation and maintenance difficulty, difficult coordination, and waste of network bandwidth resources.

[0004] The utility model provides a mine-used intrinsically safe base station, which includes an outer shell, a radio frequency antenna, and a bus board, a wireless communication module, a positioning module, a network switching module, a bus access module, and a display module encapsulated in the outer shell;

[0005] The bus board is electrically connected to the wireless communication module, the positioning module, the network switching module, the bus access module, and the display module respectively. The network switching module is electrically connected to the bus access module. Among them, the network switching module includes a network switching board, and a gigabit optical interface, a hundred-megabit electrical interface, and a hundred-megabit optical interface are arranged on the network switching board. The bus access module includes a collection control board, and the collection control board supports RS485 and CAN bus access, and the communication method is half-duplex;

[0006] A plurality of antenna ports are opened on the outer shell, and the wireless communication module and the positioning module are respectively electrically connected to the radio frequency antenna through feeders and passing through the antenna ports;

[0007] A plurality of communication interfaces are also opened on the outer shell, and a grounding bolt is arranged on the outer shell.

[0008] Optionally, the outer housing is formed of cold-rolled steel plate, and the outer surface of the outer housing is subjected to rust prevention treatment.

[0009] Optionally, the outer housing includes a cover plate and a box body;

[0010] One side of the cover plate is hinged to the box body through a hinge, and the other side of the cover plate is threadedly connected to the box body through a fastener;

[0011] A receiving cavity is formed between the cover plate and the box body. The bus board, the wireless communication module, the positioning module, the network switching module, and the bus access module are encapsulated in the receiving cavity. Rubber sealing strips are provided around the receiving cavity;

[0012] One side of the display module is encapsulated in the receiving cavity, and the other side of the display module is arranged outside the cover plate;

[0013] A plurality of the communication interfaces are arranged on the side wall of the box body, and a plurality of threaded mounting holes are provided at the bottom of the box body.

[0014] Optionally, the base station further includes an antenna mounting bracket;

[0015] The antenna mounting bracket is threadedly connected to the roadway wall or the underground roof, and the RF antenna is fixedly connected to the antenna mounting bracket;

[0016] The RF antenna is a directional antenna, and the material of the RF antenna is PVC or fiberglass.

[0017] Optionally, the electrical clearance and creepage distance between the communication interface and the outer housing or the grounding terminal reach a first preset safety distance, and the distance between adjacent two communication interfaces is not less than a second preset safety distance.

[0018] Optionally, the wireless communication module includes a 4G communication board and a Wifi communication board;

[0019] The 4G communication board and the Wifi communication board are respectively electrically connected to the bus board, and the 4G communication board and the Wifi communication board are respectively electrically connected to the RF antenna.

[0020] Optionally, the positioning module includes a UWB positioning board;

[0021] The UWB positioning board locates the UWB positioning card based on the TOF algorithm and through the RF antenna.

[0022] Optionally, the bus board includes a power supply unit and a control unit, and the power supply unit is electrically connected to the wireless communication module, the positioning module, the network switching module, the bus access module and the display module respectively, and is used to supply power to each functional module;

[0023] The control unit is connected to the network switching module and the bus access module respectively, and is used to control the access of external devices and bus signals.

[0024] Optionally, surfaces of the circuit boards in the outer shell are sprayed with conformal coating.

[0025] Optionally, the base station further includes a host computer;

[0026] The bus board is communicatively connected with the host computer via the wireless communication module and the radio frequency antenna.

[0027] The utility model provides a mining intrinsically safe base station that integrates multiple functions such as wireless communication, positioning, and network exchange. It does not require an independent wiring configuration system, reduces the overall cost and complexity of the base station, and facilitates later troubleshooting and tracking; the network exchange module is directly electrically connected to the bus access module, allowing data to flow efficiently between different modules, thereby improving the flexibility and response speed of the base station; the network exchange board in the network exchange module is provided with a variety of optoelectronic interfaces, providing high-speed data transmission capabilities, and is suitable for communication tasks with high bandwidth requirements; the acquisition control board in the bus access module supports RS485 and CAN bus access, so that the base station can be connected to a variety of devices with different communication protocols, expanding the compatibility and application range of the base station; the radio frequency antenna connected by the feeder ensures the stability of wireless communication between the base station and external devices; the grounding bolt provides a good grounding path, helps prevent lightning strikes and electrostatic discharges, protects components from damage, and enhances the electromagnetic compatibility of the base station.

[0028] Other features and advantages of the utility model will be described in the subsequent description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures specifically pointed out in the written description, claims, and drawings.

[0029] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 Schematic diagram of the connection relationship of a mine intrinsically safe base station provided in this application;

[0032] Figure 2 Structural diagram of a mine intrinsically safe base station provided in this application.

[0033] In the figure:

[0034] 1. UWB positioning board; 2. Display module; 3. Wifi communication board; 4. Network switching board; 5. Acquisition control board; 6. 4G communication board; 7. Cover plate; 8. Box body; 9. Communication interface. Detailed implementation manners

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0037] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0038] The present utility model provides a mine intrinsically safe base station, as Figure 1 and Figure 2As shown in the figure, it includes a housing, a radio frequency antenna, and a bus board, a wireless communication module, a positioning module, a network switching module, a bus access module, and a display module 2 encapsulated in the housing. The bus board is electrically connected to the wireless communication module, the positioning module, the network switching module, the bus access module, and the display module 2 respectively. The network switching module is electrically connected to the bus access module. Among them, the network switching module includes a network switching board 4, on which there are gigabit optical interfaces, 100-megabit electrical interfaces, and 100-megabit optical interfaces. The bus access module includes a collection control board 5, which supports RS485 and CAN bus access, and the communication method is half-duplex. A plurality of antenna ports are opened on the housing, and the wireless communication module and the positioning module are respectively electrically connected to the radio frequency antenna through feeder lines and passing through the antenna ports. A plurality of communication interfaces 9 are also opened on the housing, and a grounding bolt is provided on the housing.

[0039] The mine intrinsically safe base station provided by this application integrates multiple functions such as wireless communication, positioning, and network switching. It does not require independent wiring to configure the system, reducing the overall cost and complexity of the base station, and facilitating later fault troubleshooting and tracking. The network switching module is directly electrically connected to the bus access module, allowing data to flow efficiently between different modules, improving the flexibility and response speed of the base station. The network switching board 4 in the network switching module is provided with a variety of optical and electrical interfaces, providing high-speed data transmission capabilities, suitable for communication tasks with high bandwidth requirements. The collection control board 5 in the bus access module supports RS485 and CAN bus access, enabling the base station to connect to a variety of devices with different communication protocols, expanding the compatibility and application range of the base station. The radio frequency antenna connected by the feeder line ensures the stability of wireless communication between the base station and external devices. The grounding bolt provides a good grounding path, helping to prevent lightning strikes and electrostatic discharges, protecting the equipment from damage, and at the same time enhancing the electromagnetic compatibility of the base station.

[0040] Among them, the network switching board 4 is configured with at least three adaptive gigabit optical interfaces of LC 100 / 1000M, and is also configured with at least four adaptive 10 / 100M 100-megabit electrical interfaces and at least four adaptive 10 / 100M 100-megabit optical interfaces. It is configured with a fast ring network algorithm for fast recovery technology, with a recovery time less than 20 milliseconds, and it has multiple service functions such as port aggregation, static multicast filtering, port mirroring, bandwidth management, broadcast storm suppression, port traffic statistics, online upgrade, uploading and downloading configuration files, and user name logging into the system. It supports the SNMP protocol, can monitor and control the connected modules, can be remotely upgraded, and the overall setting method is modular and can be plugged and unplugged.

[0041] Similarly, the acquisition control board 5 is equipped with RS485 and CAN bus signal access functions, and the communication mode is half-duplex. Among them, there are at least two CAN input / output channels and at least four RS485 input / output channels. Its specific working mode, working parameters and statistical serial port information can be configured.

[0042] Specifically, in the above embodiment, the outer shell is formed by cold-rolled steel plate, and the outer surface of the outer shell is subjected to rust prevention treatment.

[0043] In this embodiment, the cold-rolled steel plate undergoes a cold working process, and the internal grains of the material are refined, resulting in higher strength and hardness. This enables the outer shell to withstand greater mechanical stress, improving the structural stability and durability of the base station. Moreover, the cold rolling process can make the surface of the outer shell smoother, which is beneficial for subsequent painting and rust prevention treatment, ensuring the uniformity and adhesion of the coating, and thus improving the rust prevention effect. The rust prevention treatment can enhance the durability of the outer shell. In a mine environment with strong corrosion, the rust-proofed outer shell can better resist harsh conditions, ensuring the normal operation of the equipment and the safety of personnel.

[0044] Specifically, in the above embodiment, the outer shell includes a cover plate 7 and a box body 8. One side of the cover plate 7 is hinged to the box body 8 through a hinge, and the other side of the cover plate 7 is threadedly connected to the box body 8 through a fastener. A receiving cavity is formed between the cover plate 7 and the box body 8. The bus board, wireless communication module, positioning module, network switching module and bus access module are encapsulated in the receiving cavity, and rubber sealing strips are provided around the receiving cavity. One side of the display module 2 is encapsulated in the receiving cavity, and the other side of the display module 2 is arranged outside the cover plate 7. A plurality of communication interfaces 9 are arranged on the side wall of the box body 8, and a plurality of threaded mounting holes are provided at the bottom of the box body 8.

[0045] In this embodiment, the cover plate 7 is hinged to the box body 8, enabling the user to open the base station in the way of opening a door, so that the functional modules inside the base station can be inspected, maintained or upgraded without completely disassembling the outer casing. The inspection method is simple and fast, reducing the maintenance cost and time and improving the maintenance efficiency. The rubber sealing strip provided around the accommodating cavity can effectively block the intrusion of dust, moisture and other external environmental factors, keep the electronic components inside the base station clean and dry, extend the service life of the equipment, and improve its reliability in harsh environments at the same time. The bus board, wireless communication module, positioning module, network switching module and bus access module are encapsulated in the accommodating cavity. The modular layout makes the functional modules independent of each other, easy to manage and maintain. At the same time, it reduces the complexity of internal wiring and improves the overall performance and stability of the equipment. One side of the display module 2 is encapsulated in the accommodating cavity, while the other side is arranged outside the cover plate 7, so that the user can intuitively view the device status and operation interface without opening the cover plate 7, improving the user experience and operation convenience. The multiple communication interfaces 9 on the side wall of the box body 8 are convenient for connecting external devices and networks. Through the standardized interface and module design, the device can be easily integrated with the existing system. At the same time, the reserved expansion space and interfaces also provide the possibility for future technology upgrades and function expansions. The multiple threaded mounting holes at the bottom of the box body 8 provide various mounting methods, such as wall mounting, bracket mounting, etc., enhancing the adaptability and mounting flexibility of the device.

[0046] Among them, the display module 2 specifically includes a liquid crystal display panel. The liquid crystal display panel is arranged outside the cover plate 7 and is connected to the bus board. Specifically, it can display the communication status and power supply information of other functional modules. The liquid crystal display panel is configured with RS485 bus input and output channels, provides at least one 10 / 100M adaptive hundred-megabit electrical interface, and the power supply method is intrinsically safe power supply.

[0047] Specifically, in the above embodiment, the base station further includes an antenna mounting bracket; the antenna mounting bracket is threadedly connected to the roadway wall or the roof underground, and the radio frequency antenna is fixedly connected to the antenna mounting bracket; the radio frequency antenna is a directional antenna, and the material of the radio frequency antenna is PVC or fiberglass.

[0048] In this embodiment, compared with an omnidirectional antenna, the directional antenna can provide a longer communication distance and stronger signal strength. In narrow environments such as mines or tunnels, it can effectively reduce the lateral diffusion of signals, improve the signal penetration and directivity, and ensure the stability and efficiency of data transmission. The antenna mounting bracket can be threadedly connected to the tunnel wall or the underground roof, and the position and angle of the antenna can be flexibly adjusted according to the actual installation environment and communication requirements to optimize the signal coverage and quality. PVC or fiberglass is selected as the material of the antenna, which is not only light in weight, easy to install and maintain, but also has good corrosion resistance, impact resistance and environmental adaptability. It is especially suitable for complex and harsh working environments such as mines, can maintain stable performance for a long time, reduce maintenance costs. At the same time, PVC and fiberglass are non-conductive materials, which can effectively reduce the risk of electric shock and short circuit, and enhance the safety of the base station.

[0049] Specifically, in the above embodiment, the electrical clearance and creepage distance between the communication interface 9 and the outer housing or the grounding terminal reach a first preset safety distance, and the distance between two adjacent communication interfaces 9 is not less than a second preset safety distance.

[0050] Among them, the first preset safety distance is set to 3 mm, and the second preset safety distance is set to 6 mm. Therefore, in the base station, the electrical clearance and creepage distance between the communication interface 9 and the outer housing and the grounding terminal shall not be less than 3 mm, and the distance between two adjacent communication interfaces 9 is not less than 6 mm.

[0051] In this embodiment, the electrical clearance and creepage distance are important parameters in the design of electrical equipment, which ensure that under high voltage or overcurrent conditions, the current will not form a short circuit or arc through the air or along the insulating surface, avoiding the risks of fire and explosion. Sufficient electrical clearance and creepage distance can effectively prevent the occurrence of electrical faults, such as arc discharge, short circuit or leakage, which helps to keep the base station running normally, reduce the number of maintenance and repairs, and thus reduce the operating cost. A larger electrical clearance and creepage distance means better insulation performance. Even under harsh environmental conditions, such as high humidity, pollution or corrosion, the electrical safety of the base station can be guaranteed. By reducing electrical faults and improving insulation performance, the stability and lifespan of the base station are improved in this application, reducing the downtime caused by base station failures and improving production efficiency.

[0052] Specifically, in the above embodiment, the wireless communication module includes a 4G communication board 6 and a Wifi communication board 3; the 4G communication board 6 and the Wifi communication board 3 are respectively electrically connected to the bus board, and the 4G communication board 6 and the Wifi communication board 3 are respectively electrically connected to the radio frequency antenna.

[0053] In this embodiment, the 4G communication board 6 can implement 4G communication functions. The base station of the mine 4G wireless communication system needs to comply with coal mine safety specifications. Among them, the FDD-LTE wireless communication technology can achieve faster data transmission rates and higher transmission bandwidths. The base station complies with the wireless signals of the 4G-LTE technical specifications, provides a wireless interface for mobile phone terminals to access, processes the signals of mobile phone terminals, extracts the service data therein, and accesses the industrial ring network through a network interface that complies with the 802.3 transmission specifications, etc., and transmits it to the system network device to complete data interaction and communication with other service terminals or service servers; while the Wifi communication board 3 mainly provides a WiFi signal for the area to ensure that wireless devices can access the Internet normally, supports the 802.11b / g / n standards, automatically adjusts the channel to avoid co-frequency interference. Among them, the Wifi communication board 3 can be adjusted to the AP mode, gateway mode, and universal relay, with a working frequency band of 2.4GHZ and a wireless communication distance of at least 200 meters.

[0054] Specifically, in the above embodiment, the positioning module includes a UWB positioning board 1; the UWB positioning board 1 locates the UWB standard positioning card based on the TOF algorithm and through a radio frequency antenna.

[0055] In this embodiment, the UWB (Ultra-Wideband) technology, due to its extremely wide spectrum width and extremely short pulses, can achieve centimeter-level high-precision positioning. The TOF (Time of Flight) algorithm calculates the distance by measuring the round-trip time of the signal, which makes the positioning more accurate and is suitable for scenarios with strict requirements for location information; the high data transmission rate and low latency characteristics of the UWB technology enable the positioning information to be updated quickly, and then enable the base station to give an immediate feedback; at the same time, the UWB signal has strong penetration ability and can be effectively transmitted between solid obstacles to provide a stable and reliable positioning service; at the same time, the broadband characteristics of the UWB technology give it good anti-interference ability, and can effectively suppress narrowband interference and multipath effects to ensure good positioning accuracy in a noisy electromagnetic environment.

[0056] Specifically, in the above embodiment, the bus board includes a power supply unit and a control unit. The power supply unit is electrically connected to the wireless communication module, the positioning module, the network switching module, the bus access module, and the display module 2 respectively for supplying power to each functional module; the control unit is connected to the network switching module and the bus access module respectively for controlling external devices and the access of bus signals.

[0057] Among them, the bus board adopts a modular design, allowing users to insert or remove various functional modules, such as processors, memories, input / output interfaces, etc., according to needs, thus providing high flexibility and scalability; and the bus board usually defines standardized interfaces to ensure the compatibility of different modules, facilitating system integration and upgrade; at the same time, the bus board is responsible for power distribution to ensure that each module obtains stable power supply, and may also include a power management circuit for energy saving and overload protection.

[0058] In this embodiment, the centralized power supply mode of the power supply unit simplifies the layout of the power supply lines, reduces the use of power supply cables, lowers the system complexity and fault points, and is also convenient for power management. It can monitor and control the power supply status of each functional module to improve energy efficiency; and centralized power supply can ensure that each functional module obtains a stable and consistent power supply, reducing equipment failures caused by power fluctuations and improving the overall stability and reliability of the base station; the connection between the control unit and the network switching module and the bus access module enables the bus board to intelligently manage the data flow, control the access of external devices and the transmission of bus signals, and optimize the allocation and use of resources; under the coordination of the control unit, when a certain functional module fails, the faulty module can be quickly isolated to reduce the impact on the entire base station. At the same time, the control unit can activate the standby module or take redundancy measures to ensure the continuous operation of the base station; in summary, through the centralized management of the power supply unit and the control unit, the bus board can optimize the entire base station, such as dynamically adjusting the power distribution and intelligently controlling the signal transmission priority, thereby improving the overall performance and efficiency of the base station.

[0059] Specifically, in the above embodiment, the surfaces of the circuit boards in the housing are all sprayed with three-proof paint.

[0060] Among them, the thickness of all printed circuit boards in the housing is equal to 1.6 mm, the line thickness is not less than 35 μm, the line width is not less than 0.3 mm, the covering layer is firm and reliable, and after the printed circuit board is debugged and cleaned, two coats of three-proof paint are sprayed.

[0061] In this embodiment, the three-proof paint can form a protective film, which can effectively isolate the humid air in the mine environment and prevent problems such as corrosion and short circuit of the circuit board caused by moisture; and it can significantly reduce the erosion of the printed circuit board by salt spray and extend the service life of the equipment; the three-proof paint can also block dust, fine particles and other impurities from entering the interior of the circuit board, reduce the decline of electrical performance or failures caused by dust accumulation, and effectively prevent the growth of mold, protecting the circuit board from biological corrosion; and the three-proof paint has certain insulation properties, which can reduce static electricity accumulation and avoid damage to sensitive electronic components caused by electrostatic discharge; the three-proof paint coating can also enhance the mechanical strength of the circuit board and reduce the damage of the circuit board caused by mechanical stresses such as vibration and impact.

[0062] Specifically, in the above embodiments, the base station further includes a host computer; the bus board is communicatively connected to the host computer through a wireless communication module and a radio frequency antenna.

[0063] In this embodiment, the host computer can remotely monitor the operating status of the base station, including but not limited to network conditions, device health, signal strength, etc., enabling management personnel to understand and control the operation of the base station without having to be on-site, improving the operation and maintenance efficiency; at the same time, the host computer can collect a large amount of data generated by the base station, such as communication records, fault logs, performance metrics, etc. Through data analysis, the network configuration can be optimized, potential faults can be predicted and prevented in advance, enhancing the stability and reliability of the system; through the wireless communication connection, the host computer can remotely upgrade the software, configure parameters and troubleshoot faults of the base station, reducing the need for on-site maintenance, lowering the maintenance cost and time consumption, and the wireless communication connection makes the deployment of the base station more flexible, not restricted by physical wiring. At the same time, the host computer can easily expand the network, add or adjust the location of the base station to adapt to changing requirements, and quickly respond to on-site changes. For example, in an emergency, it can immediately adjust network resources to improve the ability to respond to emergencies.

[0064] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model is also intended to include these changes and modifications.

Claims

1. A mine intrinsically safe base station, characterized in that: It comprises an outer shell, a radio frequency antenna, and a bus board, a wireless communication module, a positioning module, a network switching module, a bus access module and a display module (2) which are packaged in the outer shell; The bus board is electrically connected to the wireless communication module, the positioning module, the network switching module, the bus access module and the display module (2) respectively, and the network switching module is electrically connected to the bus access module, wherein the network switching module comprises a network switching board (4), and the network switching board (4) is provided with a gigabit optical interface, a 100M electrical interface and a 100M optical interface, and the bus access module comprises a collection control board (5), and the collection control board (5) supports RS485 and CAN bus access, and the communication mode is half-duplex; The outer shell is provided with a plurality of antenna ports, and the wireless communication module and the positioning module are respectively electrically connected to the radio frequency antenna through feeder lines and through the antenna ports; The outer shell is also provided with a plurality of communication interfaces (9), and the outer shell is provided with a grounding bolt.

2. The mine intrinsically safe base station according to claim 1, characterized in that: The outer shell is formed by cold-rolled steel plate, and the outer surface of the outer shell is subjected to rust-proof treatment.

3. The mine intrinsically safe base station according to claim 1, characterized in that: The outer shell comprises a cover plate (7) and a box body (8); The cover plate (7) is hinged to one side of the box body (8) via a hinge, and the cover plate (7) is threadedly connected to the other side of the box body (8) via a fastener; A receiving cavity is formed between the cover plate (7) and the box body (8), the bus board, the wireless communication module, the positioning module, the network switching module and the bus access module are encapsulated in the receiving cavity, and rubber sealing strips are arranged around the receiving cavity; One side of the display module (2) is encapsulated in the accommodating cavity, and the other side of the display module (2) is arranged on the outside of the cover plate (7); The plurality of communication interfaces (9) are arranged on the side wall of the box body (8), and the bottom of the box body (8) is provided with a plurality of threaded mounting holes.

4. The mine intrinsically safe base station according to claim 1, characterized in that: The base station also includes an antenna mounting bracket; The antenna mounting bracket is threadedly connected to the tunnel wall or the top plate under the well, and the radio frequency antenna is fixedly connected to the antenna mounting bracket; The radio frequency antenna is a directional antenna, and the material of the radio frequency antenna is PVC or fiberglass.

5. The mine intrinsically safe base station according to claim 1, characterized in that: The electrical clearance and creepage distance between the communication interface (9) and the outer shell or the grounding terminal reach a first preset safety distance, and the distance between two adjacent communication interfaces (9) is not less than a second preset safety distance.

6. The mine intrinsically safe base station according to claim 1, characterized in that: The wireless communication module comprises a 4G communication board (6) and a Wifi communication board (3); The 4G communication board (6) and the Wifi communication board (3) are electrically connected to the bus board respectively, and the 4G communication board (6) and the Wifi communication board (3) are electrically connected to the radio frequency antenna respectively.

7. The mine intrinsically safe base station according to claim 1, characterized in that: The positioning module comprises a UWB positioning board (1); The UWB positioning board (1) positions the UWB standard positioning card based on the TOF algorithm and through the radio frequency antenna.

8. The mine intrinsically safe base station according to claim 1, characterized in that: The bus board comprises a power supply unit and a control unit, wherein the power supply unit is electrically connected to the wireless communication module, the positioning module, the network switching module, the bus access module and the display module (2) respectively, and is used to supply power to each functional module; The control unit is connected to the network switching module and the bus access module respectively, and is used to control the access of external devices and bus signals.

9. The mine-used intrinsically safe base station according to any one of claims 1 to 8, characterized in that: The surfaces of the circuit boards in the outer shell are sprayed with three-proof paint.

10. The mine intrinsically safe base station according to claim 1, characterized in that: The base station also includes a host computer; The bus board is communicatively connected with the host computer via the wireless communication module and the radio frequency antenna.

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