An explosion-proof positioning base station

Abstract

The utility model belongs to positioning equipment technical field especially is a kind of anti -explosion positioning base station, including shell, the outer surface of shell is fixedly connected with three directional antennas, the right side of shell is provided with groove frame, the inside of shell is provided with anti -explosion power module, the inner wall of shell is fixedly connected with signal processing unit and anti -explosion communication module respectively, the inside of groove frame is slidably connected with sliding frame, the inner wall of groove frame is rotatably connected with threaded rod, the outer surface of threaded rod is screw thread connection with the inner wall of sliding frame, the upper surface of groove frame is fixedly connected with limit ring, the inside of threaded rod is slidably connected with sliding rod, the top of sliding rod is fixedly connected with the bottom of screwing frame, by adopting the shell of explosion -proof structure design collocation intrinsic safety signal processing unit, anti -explosion communication module and anti -explosion power module, overall satisfy Ex db IIC T6 Gb anti -explosion standard, solve the problem of the insufficient explosion -proof performance of existing equipment, can be safely operated in methane, propane and other flammable and explosive gas environment.

Description

Technical Field

[0001] This utility model belongs to the field of positioning equipment technology, and specifically relates to an explosion-proof positioning base station. Background Technology

[0002] Explosion-proof positioning base stations are positioning devices used in dangerous environments such as petrochemical workshops and underground coal mines where there are flammable and explosive gases or dust. They receive and process signals emitted by positioning tags to achieve real-time positioning of targets such as personnel, vehicles, and materials. They also have explosion-proof and harsh environment resistance characteristics to ensure safety management and emergency response in dangerous environments.

[0003] However, existing positioning technologies have significant shortcomings in scenarios with explosion-proof requirements, such as petrochemical workshops and underground coal mines. Specifically, these shortcomings include: insufficient explosion-proof performance and ease of installation. Most existing base stations do not meet the Ex db IIC T6Gb explosion-proof standard and cannot be easily installed and operated safely in flammable and explosive gas environments. At the same time, signal stability is poor, with the frequency band signal attenuation rate reaching 12dB / m in explosion-proof scenarios rich in dust and vapor, leading to frequent positioning interruptions. In addition, the equipment lacks durability, with most housing protection levels being IP54, which is insufficient to withstand the impact, vibration, and corrosive gas corrosion in explosion-proof environments. The mean time between failures (MTBF) is less than 2000 hours, and there is a lack of emergency response mechanisms in explosion-proof scenarios. When a positioning tag sends a distress signal, the base station cannot quickly activate the alarm system and accurately locate the distress position.

[0004] To address the aforementioned issues, this application proposes an explosion-proof positioning base station. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides an explosion-proof positioning base station, which features excellent explosion-proof performance, strong signal stability, good environmental adaptability, rapid emergency response, and low deployment cost.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an explosion-proof positioning base station, comprising a housing, three directional antennas fixedly connected to the outer surface of the housing, a slot frame provided on the right side of the housing, an explosion-proof power supply module disposed inside the housing, a signal processing unit and an explosion-proof communication module fixedly connected to the inner wall of the housing respectively, a sliding frame slidably connected inside the slot frame, a threaded rod rotatably connected to the inner wall of the slot frame, the outer surface of the threaded rod being threadedly connected to the inner wall of the sliding frame, a limit ring fixedly connected to the upper surface of the slot frame, a sliding rod slidably connected inside the threaded rod, the top end of the sliding rod being fixedly connected to the bottom surface of the screwing frame, the outer surface of the screwing frame contacting the inner wall of the limit ring, a collar fixedly connected to the left side of the sliding frame, a rotating ring rotatably connected inside the collar, and the left side of the rotating ring being fixedly connected to the right side of the housing.

[0007] As a preferred embodiment of the present invention, each of the directional antennas has a fixing ring fixedly connected to its outer surface, and the side of each fixing ring near the housing is fixedly connected to the outer surface of the housing.

[0008] As a preferred embodiment of this utility model, a connecting plate is fixedly connected to the left side of the housing, and a nameplate is fixedly connected to the left side of the connecting plate.

[0009] As a preferred embodiment of this utility model, a fixing plate is fixedly connected to the right side of the explosion-proof power module, and the right side of the fixing plate is fixedly connected to the inner wall of the housing.

[0010] As a preferred embodiment of this utility model, two fixing brackets are fixedly connected to the right side of the slot frame, and each fixing bracket has two fixing holes on its right side.

[0011] As a preferred embodiment of this utility model, a reinforcing ring is fixedly connected to the outer surface of the rotating ring, and the left side of the reinforcing ring is fixedly connected to the right side of the shell.

[0012] As a preferred embodiment of this utility model, the upper surface of the screwing frame is fixedly connected to two connecting blocks, and the upper surfaces of the two connecting blocks are jointly fixedly connected to a handle.

[0013] As a preferred embodiment of this utility model, the inner wall of the collar is threaded with a locking bolt, and the end of the locking bolt near the rotating ring abuts against the outer surface of the rotating ring.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: By adopting an explosion-proof structural design for the housing, combined with an intrinsically safe signal processing unit, an explosion-proof communication module, and an explosion-proof power supply module, the overall system meets the Ex db IIC T6 Gb explosion-proof standard, solving the problem of insufficient explosion-proof performance of existing equipment. It can operate safely in flammable and explosive gas environments such as methane and propane. Simultaneously, the signal processing unit uses an STM32H743 microprocessor, equipped with an anti-interference TDOA / AOA fusion algorithm, supporting 6-channel parallel processing (sampling rate 125MHz). Combined with three directional antennas for signal reception, the signal attenuation rate in dust and steam environments is reduced from 12dB / m to 3dB / m, improving positioning continuity and accuracy, and effectively solving the problem of poor signal stability. Furthermore, the explosion-proof communication module utilizes an explosion-proof dual gigabit Ethernet interface and fiber optic isolation technology, coupled with the IEEE-1588v2 clock synchronization protocol, ensuring stable signal transmission and avoiding electrical sparks. The explosion-proof power supply module supports 12- With a 48VDC wide voltage input, built-in multiple protection circuits, and the option to use an intrinsically safe battery for backup, it ensures continuous operation during power outages. A lifting mechanism composed of a slotted frame, threaded rod, and sliding frame, along with a rotating structure consisting of a rotating ring and a collar, allows for height adjustment and horizontal / tilt angle adjustment to adapt to different signal coverage requirements. Furthermore, the housing features an IP66 protection rating, enhancing impact resistance and mean time between failures (MTBF) and improving adaptability to harsh environments. The signal processing unit supports high-concurrency processing, completing location calculation and triggering the alarm system within ≤50ms after receiving a distress signal, addressing the issue of inadequate emergency response. Modular design and adjustable brackets expand the base station deployment spacing, reducing equipment investment costs in explosion-proof areas, combining practicality and economy. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the shell structure in this utility model; Figure 3 This is a schematic diagram of the signal processing unit in this utility model; Figure 4 This is a schematic diagram of the structure of the slot frame in this utility model; Figure 5 This is a cross-sectional view of the collar structure in this utility model; Figure 6 This is a schematic diagram of the screwing frame in this utility model; Figure 7This is a cross-sectional view of the threaded rod in this utility model; Figure 8 This is a schematic diagram of the locking bolt in this utility model; In the diagram: 1. Housing; 2. Slot frame; 3. Directional antenna; 4. Fixing ring; 5. Nameplate; 6. Connecting plate; 7. Explosion-proof power module; 8. Fixing plate; 9. Explosion-proof communication module; 10. Signal processing unit; 11. Threaded rod; 12. Collar; 13. Fixing bracket; 14. Fixing hole; 15. Reinforcing ring; 16. Rotating ring; 17. Sliding bracket; 18. Limiting ring; 19. Tightening bracket; 20. Connecting block; 21. Handle; 22. Sliding rod; 23. Locking bolt. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0017] Please see Figure 1-8 The present invention provides the following technical solution: an explosion-proof positioning base station, including a housing 1, three directional antennas 3 fixedly connected to the outer surface of the housing 1, a slot frame 2 provided on the right side of the housing 1, an explosion-proof power module 7 provided inside the housing 1, a signal processing unit 10 and an explosion-proof communication module 9 fixedly connected to the inner wall of the housing 1 respectively, a sliding frame 17 slidably connected inside the slot frame 2, a threaded rod 11 rotatably connected to the inner wall of the slot frame 2, the outer surface of the threaded rod 11 being threadedly connected to the inner wall of the sliding frame 17, a limit ring 18 fixedly connected to the upper surface of the slot frame 2, a sliding rod 22 slidably connected inside the threaded rod 11, the top end of the sliding rod 22 being fixedly connected to the bottom surface of the screwing frame 19, the outer surface of the screwing frame 19 contacting the inner wall of the limit ring 18, a collar 12 fixedly connected to the left side of the sliding frame 17, a rotating ring 16 rotatably connected inside the collar 12, and the left side of the rotating ring 16 being fixedly connected to the right side of the housing 1; In this embodiment, the housing 1 adopts an explosion-proof structural design, and together with the intrinsically safe signal processing unit 10, the explosion-proof communication module 9, and the explosion-proof power supply module 7, the whole structure meets Ex db IIC T6 standards. The Gb explosion-proof standard allows for safe operation in flammable and explosive environments. The slot frame 2 and the sliding frame 17 form a lifting mechanism through the threaded rod 11. Rotating the screwing frame 19 drives the sliding rod 22 and the threaded rod 11 to rotate, causing the sliding frame 17 to move up and down along the slot frame 2, thus adjusting the height of the base station. The sliding rod 22 slides within the threaded rod 11, allowing the screwing frame 19 to move out of the limiting ring 18 for screwing. When the screwing frame 19 moves into the limiting ring 18, the inner wall of the limiting ring 18 forms a circumferential limit on the screwing frame 19, preventing it from rotating. At the same time, the collar 12 and the rotating ring 16 form a rotating structure, allowing the housing 1 to rotate around the axis of the rotating ring 16. This, combined with the axial limit of the screwing frame 19 by the limiting ring 18, ensures structural stability after adjustment. The directional antenna 3 is fixed to the housing 1 through the fixing ring 4 and is used to receive positioning tag signals. After processing by the signal processing unit 10 and the explosion-proof communication module 9, the signal is used to achieve target positioning.

[0018] Specifically, each directional antenna 3 has a fixing ring 4 fixedly connected to its outer surface. The side of each fixing ring 4 closest to the housing 1 is fixedly connected to the outer surface of the housing 1. In this embodiment, the directional antenna 3 is rigidly connected to the housing 1 by the fixing ring 4, which not only ensures the verticality and stability of the antenna installation and avoids the antenna shift caused by vibration or external force, thus affecting the signal reception accuracy, but also increases the contact area between the antenna and the housing 1, disperses the force on the antenna, and prevents the connection part from loosening or the housing 1 from being locally deformed after long-term use.

[0019] Specifically, a connecting plate 6 is fixedly connected to the left side of the housing 1, and a nameplate 5 is fixedly connected to the left side of the connecting plate 6. In this embodiment, the nameplate 5 is indirectly connected to the housing 1 through the connecting plate 6, which avoids the problem of water accumulation in the installation gap caused by the nameplate 5 directly contacting the surface of the housing 1. At the same time, the nameplate 5 can clearly mark key information such as equipment model, explosion-proof level, and parameter specifications, which makes it easy for maintenance personnel to quickly identify equipment attributes and verify compliance.

[0020] Specifically, a fixing plate 8 is fixedly connected to the right side of the explosion-proof power module 7. The right side of the fixing plate 8 is fixedly connected to the inner wall of the housing 1. In this embodiment, the explosion-proof power module 7 is suspended and fixed inside the housing 1 by the fixing plate 8, which avoids electromagnetic interference caused by direct contact between the module and the inner wall of the housing 1, and also provides a heat dissipation gap, which is conducive to the heat dissipation of the power module during operation. At the same time, the fixing plate 8 enhances the anti-vibration performance of the module installation and prevents the equipment from shifting during transportation or in a vibrating environment.

[0021] Specifically, two fixing frames 13 are fixedly connected to the right side of the slot frame 2. Each fixing frame 13 has two fixing holes 14 on its right side. In this embodiment, the base station can be fixed to the wall, bracket or other installation base by the fixing frames 13 and fixing holes 14. The double fixing frame 13 design distributes the weight load of the equipment. With the expansion bolts or fastening components in the fixing holes 14, it is ensured that the base station will not tilt or fall off during long-term use, and adapts to the fixing requirements of different installation scenarios.

[0022] Specifically, a reinforcing ring 15 is fixedly connected to the outer surface of the rotating ring 16. The left side of the reinforcing ring 15 is fixedly connected to the right side of the housing 1. In this embodiment, the reinforcing ring 15 enhances the connection strength between the rotating ring 16 and the housing 1, preventing the connection part from cracking or deforming due to excessive torque when the housing 1 rotates around the rotating ring 16 to adjust the angle. At the same time, the reinforcing ring 15 provides radial support to the rotating ring 16, ensuring coaxiality during rotation and reducing jamming during angle adjustment.

[0023] Specifically, two connecting blocks 20 are fixedly connected to the upper surface of the screwing frame 19, and a handle 21 is fixedly connected to the upper surface of the two connecting blocks 20. In this embodiment, the handle 21 and the connecting blocks 20 provide a convenient force application point for the screwing frame 19. The operator can easily pull the screwing frame 19 out of the limiting ring 18 and rotate it by holding the handle 21, which reduces the difficulty of height adjustment operation. At the same time, the symmetrical design of the two connecting blocks 20 ensures that the handle 21 is subjected to balanced force, avoiding the problem of unilateral breakage after long-term use.

[0024] Specifically, the inner wall of the collar 12 is threaded with a locking bolt 23. The end of the locking bolt 23 near the rotating ring 16 abuts against the outer surface of the rotating ring 16. In this embodiment, the rotating ring 16 and the collar 12 can be rigidly locked by tightening the locking bolt 23. After the housing 1 completes the angle adjustment, its position is quickly fixed to prevent the device from shifting its angle under vibration or external force, and to ensure that the directional antenna 3 always maintains the best signal coverage direction. Loosening the locking bolt 23 allows for fine-tuning of the angle again. The operation is convenient and the fixation is reliable.

[0025] The working principle and usage process of this utility model are as follows: In use, the base station is first fixed to a wall, bracket, or other mounting base via the two fixing brackets 13 on the right side of the slot frame 2 and the fixing holes 14 on the right side of the fixing brackets 13. Expansion bolts or other fastening components can be used for fixing. The design of the double fixing brackets 13 effectively distributes the weight load of the equipment, ensuring that the base station will not tilt or fall off during long-term use. After fixing, if it is necessary to adjust the height of the base station, the handle 21 on the rotating bracket 19 can be pulled upwards, causing the rotating bracket 19 to drive the sliding rod 22 out of the limiting ring 18. Then, the handle 21 is rotated to drive the threaded rod 11 to rotate. Since the outer surface of the threaded rod 11 is threadedly connected to the inner wall of the sliding bracket 17, the rotation of the threaded rod 11 will drive the sliding bracket 17 along... The slot frame 2 moves up and down to adjust the height of the base station. After adjusting to the appropriate height, the rotating frame 19 is pushed back into the limiting ring 18. At this time, the inner wall of the limiting ring 18 will form a circumferential limit on the rotating frame 19 to prevent it from rotating, thereby fixing the height of the base station. To adjust the angle of the base station, the locking bolt 23 on the inner wall of the collar 12 must be loosened first, and then the housing 1 is manually rotated. The housing 1 is connected to the collar 12 through the rotating ring 16. The angle can be adjusted when rotating. After the angle adjustment is completed, the locking bolt 23 is tightened so that the end of the locking bolt 23 near the rotating ring 16 abuts against the outer surface of the rotating ring 16, rigidly locking the rotating ring 16 and the collar 12, thereby fixing the angle of the housing 1 and ensuring that the directional antenna 3 is in the optimal signal coverage direction, thus completing the base station setup. After installation and adjustment, connect the power supply to the explosion-proof power module 7. The explosion-proof power module 7 supports a wide voltage input of 12-48VDC. Its built-in overcurrent, overvoltage, and short-circuit protection circuits ensure a stable power supply. Simultaneously, the module outputs a 12VDC, 2A intrinsically safe power supply to power all modules of the base station. In case of power failure, the explosion-proof power module 7 can also be used in conjunction with an intrinsically safe battery backup to ensure continuous operation of the base station for ≥4 hours. After the base station starts up, the three directional antennas 3 will begin receiving signals from the positioning tags. The fixing ring 4 on the outer surface of each directional antenna 3 rigidly connects the antenna to the housing 1, ensuring the verticality and stability of the antenna installation and preventing antenna displacement due to vibration or external force from affecting signal reception accuracy. The received signal will be transmitted to the housing. The signal processing unit 10, located within the inner wall, employs an STM32H743 microprocessor and features an anti-interference TDOA / AOA fusion algorithm. It supports 6-channel parallel processing with a sampling rate of 125MHz, enabling signal processing and target localization. Simultaneously, the processed signal is transmitted via an explosion-proof communication module 9. This module utilizes an explosion-proof dual-gigabit Ethernet interface, supports the IEEE-1588v2 clock synchronization protocol, and the communication cable is introduced through an explosion-proof gland. Fiber optic isolation technology ensures stable signal transmission and prevents electrical sparks. When the positioning tag sends a distress signal, the signal processing unit 10 can complete position calculation within 50ms.The explosion-proof communication module 9 is used to link with the on-site audible and visual alarm devices, and simultaneously uploads location information to the monitoring center for emergency response. Throughout the operation, the housing 1 adopts an explosion-proof structural design, combined with the intrinsically safe signal processing unit 10, explosion-proof communication module 9, and explosion-proof power supply module 7, meeting the Ex db IIC T6 Gb explosion-proof standard, allowing safe operation in flammable and explosive environments. Furthermore, the nameplate 5, fixed to the left side of the housing 1 via the connecting plate 6, clearly displays key information such as the equipment model, explosion-proof rating, and specifications, facilitating equipment identification and compliance verification by maintenance personnel.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An explosion-proof positioning base station, characterized in that: The system includes a housing (1), three directional antennas (3) are fixedly connected to the outer surface of the housing (1), a slot frame (2) is provided on the right side of the housing (1), an explosion-proof power module (7) is provided inside the housing (1), a signal processing unit (10) and an explosion-proof communication module (9) are fixedly connected to the inner wall of the housing (1), a sliding frame (17) is slidably connected inside the slot frame (2), and a threaded rod (11) is rotatably connected to the inner wall of the slot frame (2). The outer surface of the threaded rod (11) is threaded with the inner wall of the sliding frame (17). The upper surface of the slot frame (2) is fixedly connected to a limiting ring (18), and the inside of the threaded rod (11) is slidably connected to a sliding rod (22). The top end of the sliding rod (22) is fixedly connected to the bottom surface of the screwing frame (19), and the outer surface of the screwing frame (19) is in contact with the inner wall of the limiting ring (18). The left side of the sliding frame (17) is fixedly connected to a collar (12), and the inside of the collar (12) is rotatably connected to a rotating ring (16). The left side of the rotating ring (16) is fixedly connected to the right side of the housing (1).

2. The explosion-proof positioning base station according to claim 1, characterized in that: Each of the directional antennas (3) has a fixed ring (4) fixedly connected to its outer surface, and each fixed ring (4) is fixedly connected to the outer surface of the housing (1) on one side near the housing (1).

3. The explosion-proof positioning base station according to claim 1, characterized in that: A connecting plate (6) is fixedly connected to the left side of the housing (1), and a nameplate (5) is fixedly connected to the left side of the connecting plate (6).

4. The explosion-proof positioning base station according to claim 1, characterized in that: The right side of the explosion-proof power module (7) is fixedly connected to a fixing plate (8), and the right side of the fixing plate (8) is fixedly connected to the inner wall of the housing (1).

5. The explosion-proof positioning base station according to claim 1, characterized in that: Two fixing brackets (13) are fixedly connected to the right side of the slot frame (2), and two fixing holes (14) are opened on the right side of each fixing bracket (13).

6. The explosion-proof positioning base station according to claim 1, characterized in that: A reinforcing ring (15) is fixedly connected to the outer surface of the rotating ring (16), and the left side of the reinforcing ring (15) is fixedly connected to the right side of the shell (1).

7. The explosion-proof positioning base station according to claim 1, characterized in that: The upper surface of the screwing frame (19) is fixedly connected to two connecting blocks (20), and the upper surfaces of the two connecting blocks (20) are jointly fixedly connected to a handle (21).

8. The explosion-proof positioning base station according to claim 1, characterized in that: The inner wall of the collar (12) is threaded with a locking bolt (23), and the end of the locking bolt (23) near the rotating ring (16) abuts against the outer surface of the rotating ring (16).

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