Wall-mounted wireless acquisition and transmission node instrument for advanced detection of tunneling geological disasters

Abstract

The utility model discloses a wall-mounted wireless acquisition and transmission node instrument for advanced detection of tunneling geological disasters. The wall-mounted wireless acquisition and transmission node instrument comprises a shell and a data acquisition and real-time transmission module for detecting seismic wave signals. The data acquisition and real-time transmission module comprises a wiring port, a shell plug connector, a wireless acquisition and real-time transmission control hardware circuit board, a signal line and a battery pack, the shell plug connector comprises an antenna base and an external antenna, and the wireless acquisition and real-time transmission control hardware circuit board is fixed in the rear shell; and a signal wire connected with the plug connector of the shell is connected to a corresponding wiring port of the wireless acquisition real-time transmission control hardware circuit board. The integration degree of the node instrument is improved through the built-in data acquisition and real-time transmission module, high-precision synchronous acquisition and wireless real-time transmission of seismic wave signals detected in tunneling are realized by adopting the high-precision synchronization module and the Wi-Fi wireless transmission module, and the node instrument can easily adapt to various complex tunneling environments; and high-quality detection seismic wave data is provided for advanced prediction of geological disasters.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering and geological disaster monitoring, and in particular to a wall-mounted wireless acquisition and transmission node instrument for advanced detection of geological disasters in tunnel excavation. The node instrument can be used in the process of tunnel excavation to collect and transmit detection seismic wave data information in real time, so as to achieve advanced prediction and early warning of potential geological disasters. Background Art

[0002] In the advance detection of geological hazards in tunnel excavation, wireless acquisition and transmission node instruments, as an emerging technology, have gradually attracted widespread attention and application. Its main advantage is that it can effectively reduce the complexity of wiring and improve the data transmission rate and synchronization performance. However, despite the excellent performance of this technology in some aspects, the current wireless acquisition and transmission node instruments still have some key shortcomings, which limit their widespread application and further development.

[0003] First of all, the existing wireless acquisition and transmission node instruments have a low degree of integration and cannot achieve high-precision synchronization and high-speed and stable transmission. High-precision synchronization is a crucial part of the advance detection of geological disasters, because the data between different nodes must be highly consistent in time to ensure the accuracy of the detection results. However, due to the lack of integrated design of existing equipment, there are errors in the time synchronization between nodes, which affects the accuracy of the detection data. In addition, high-speed and stable transmission is also a key factor in ensuring the real-time and integrity of data. The current node instruments are easily interfered during high-speed transmission, and the transmission rate and stability cannot be effectively guaranteed, resulting in data packet loss and transmission delays, affecting the effect of real-time monitoring and early warning.

[0004] Secondly, the structure of the existing wireless acquisition and transmission node instrument is relatively complex and the production cost is high. The wireless node instrument is usually composed of multiple sensors, signal processing units, wireless transmission modules and power management systems. The complex structure not only increases the difficulty of design and manufacturing, but also leads to higher production costs. This limits the economic feasibility of wireless node instruments in large-scale applications to a certain extent. Especially in scenarios such as tunnel excavation that require large-area coverage and multi-node collaboration, the high equipment cost has become a major obstacle to promotion and application. In order to reduce costs and improve the cost-effectiveness of equipment, it is urgent to simplify the structural design of the node instrument and adopt more economical manufacturing processes and materials. In addition, in actual use, the layout efficiency of the existing wireless acquisition and transmission node instruments in the tunnel is low, which affects the overall construction progress. The tunnel environment is complex and the space is limited. The traditional wiring method is not only time-consuming and labor-intensive, but also increases the difficulty of construction and safety risks. Although the wireless node instrument does not need to lay complex cables, its installation and debugging still requires a lot of time and manpower. In particular, due to the limited propagation of wireless signals in the tunnel, it is necessary to accurately locate the position of each node to ensure effective coverage and transmission of the signal, which further increases the complexity and workload of the layout. In addition, power management of node instruments is also a challenge. Long-term operation requires reliable power support, but replacing or maintaining batteries in tunnels is also difficult.

[0005] Therefore, research should focus on improving the integrated design level of node instruments to ensure high-precision synchronization and high-speed and stable transmission; at the same time, simplify the structural design and reduce production costs; and optimize the layout and maintenance processes to improve the layout efficiency in the tunnel. Utility Model Content

[0006] In order to further improve the transmission rate and synchronization performance of wireless acquisition and transmission node instruments and meet the application requirements in complex tunnel environments, a wall-mounted wireless acquisition and transmission node instrument for advanced detection of geological disasters in tunnel excavation is provided. The integration of the node instrument is improved by the built-in data acquisition real-time transmission module, and the high-precision synchronization module and Wi-Fi wireless transmission module are used to achieve high-precision synchronization and high-speed and stable transmission of tunnel acquisition nodes. It can easily adapt to various complex tunnel excavation environments and provide high-quality detection seismic wave data for advanced prediction of geological disasters.

[0007] In order to achieve the above purpose, the technical solution adopted in this application is:

[0008] A wall-mounted wireless data acquisition and transmission node instrument for advanced detection of geological disasters in tunnel excavation, comprising a shell and a data acquisition and real-time transmission module for detecting seismic wave signals, wherein the shell comprises a front cover and a rear shell, the data acquisition and real-time transmission module comprises a wiring port, a shell connector, a wireless data acquisition and real-time transmission control hardware circuit board, a signal line and a battery pack, the shell connector comprises an antenna base and an external antenna, the wireless data acquisition and real-time transmission control hardware circuit board is fixed inside the rear shell, and the signal line connected to the shell connector is connected to the corresponding wiring port of the wireless data acquisition and real-time transmission control hardware circuit board.

[0009] The wireless acquisition real-time transmission control hardware circuit board includes a high-precision synchronization module and a Wi-Fi wireless transmission module.

[0010] Preferably, the housing connector also includes a charging interface and a button switch.

[0011] More preferably, the housing connector also includes a piezoelectric sensor interface and a three-color indicator light.

[0012] More preferably, the front side of the front cover is recessed inwards to form a concave surface of the front cover, and the three-color indicator light is mounted on the concave surface of the front cover.

[0013] More preferably, the external antenna is a rubber stick antenna, which is detachably connected to the antenna base on the rear shell.

[0014] More preferably, the front cover is provided with front cover screw fixing holes at the four corners, and the rear shell is provided with rear shell screw fixing holes at the four corners. The mounting screws pass through the front cover screw fixing holes and are fixedly connected with the rear shell screw fixing holes. The opposite surfaces of the front cover and the rear shell are respectively provided with front cover convex grooves and rear shell concave grooves, and a rubber sealing ring is provided in the rear shell groove.

[0015] More preferably, two rear shell wiring openings are provided at the bottom of the rear shell, and the steel cable lifting rope is fixed to the rear shell through the rear shell wiring openings.

[0016] Preferably, a battery placement slot and a battery slot buckle are provided on the back of the rear shell, and the battery pack is placed separately in the battery placement slot and fixed with the battery slot buckle.

[0017] The beneficial effects of the utility model include: (1) by means of a built-in data acquisition and real-time transmission module, the integration level of the node instrument is improved, and the stability and quality of data acquisition are enhanced; (2) by using a high-precision synchronization module and a Wi-Fi wireless transmission module, high-precision synchronous acquisition and wireless real-time transmission of seismic wave signals detected during tunnel excavation are realized, and it can adapt to various complex tunnel excavation environments; (3) a three-color indicator light is provided on the top of the front cover, and the working status of the node instrument can be monitored in real time by the color change of the light. A charging interface, a button switch and a pressure point sensor interface are provided on the outside of the rear cover. The charging interface supports real-time external charging. A battery placement port is provided at the bottom of the rear cover for easy battery replacement; (4) the outer shell has the characteristics of being waterproof, dustproof, drop-resistant, wear-resistant and isolating from external electromagnetic interference. The design of the wiring port on the rear shell is convenient for layout; (5) the components can be mass-produced and quickly assembled as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 It is a three-dimensional assembly diagram of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the utility model.

[0021] Figure 3 This is a schematic diagram of the upper cover.

[0022] Figure 4 This is a schematic diagram of the front side of the rear shell.

[0023] Figure 5 This is a schematic diagram of the back side of the rear case.

[0024] In the figure: 1. Front cover, 2. Back shell, 3. Shell connector, 4. Wireless acquisition real-time transmission control hardware board, 5. Battery pack, 6. Front cover concave surface, 7. High-precision synchronization module, 8. Glue stick antenna, 9. Antenna base, 10. Charging interface, 11. Push button switch, 12. Piezoelectric sensor interface, 13. Three-color indicator light, 14. Wi-Fi wireless transmission module, 15. Battery placement slot, 16. Battery slot buckle, 17. Back shell wiring port, 18. Front cover screw fixing hole, 19. Front cover convex groove, 20. Three-color lamp screw fixing hole, 21. Back shell screw fixing hole, 22. Back shell top groove, 23. Hardware circuit board mounting screw fixing hole, 24. Antenna base mounting hole, 25. Charging socket mounting hole, 26. Piezoelectric sensor mounting hole, 27. Switch socket mounting hole DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a wall-mounted wireless data acquisition and transmission node instrument for advanced detection of geological disasters in tunnel excavation includes the data acquisition real-time transmission module and a shell for detecting seismic wave signals. The shell includes a front cover 1, a rear shell 2 and a shell connector 3, and the front cover 1 and the rear shell 2 can be fixedly connected using nuts; the data acquisition real-time transmission module includes a wiring port, a shell connector, a wireless data acquisition real-time transmission control hardware circuit board, a signal line and a battery pack. The wireless data acquisition real-time transmission control hardware circuit board is fixed inside the rear shell, and the signal line connected to the shell connector is connected to the corresponding wiring port of the wireless data acquisition real-time transmission control hardware circuit board.

[0028] The shell connector 3 includes two rubber stick antennas 8, two antenna bases 9, a charging interface 10, a push button switch 11, a piezoelectric sensor interface 12 and a three-color indicator light 13. The front face of the front cover 1 is recessed inward to form a front cover concave surface 6, on which a three-color lamp screw fixing hole 20 is provided. The three-color indicator light screw passes through the three-color lamp screw fixing hole 20 to fasten the three-color indicator light 13 to the front cover 1. The front cover concave surface 7 is designed so that the position of the three-color indicator light 13 is not higher than the front cover, and the three-color indicator light is not easily damaged during transportation and use. Two antenna seat mounting holes 24, a switch socket mounting hole 25 and a charging socket mounting hole 26 are provided on the top of the rear shell 2. The antenna base 9 is fixed to the antenna seat mounting hole 24, the two rubber stick antennas 8 are fixed to the antenna base 9 on the top of the rear shell 2, the push button switch 11 is fixed in the switch socket mounting hole 27, and the charging interface 10 is fixed in the charging socket mounting hole 25. A piezoelectric sensor mounting hole 26 is provided at the bottom of the rear housing 2 , and the piezoelectric sensor interface 12 is fixed in the piezoelectric sensor mounting hole 26 .

[0029] The wireless acquisition real-time transmission control hardware circuit board 4 includes a high-precision synchronization module 7 and a Wi-Fi wireless transmission module 14. The wireless acquisition real-time transmission control hardware circuit board 4 is fixed to the circuit board mounting screw fixing hole 23 set in the rear shell 2 with screws. The battery pack 5 can be a lithium battery pack. The battery pack 5 is placed in the battery placement slot 15 and fixed by the battery slot buckle 16.

[0030] In this embodiment, the front cover is provided with front cover screw fixing holes 18 at the four corners, and the rear shell is provided with rear shell screw fixing holes 21 at the four corners. The installation screws pass through the front cover screw fixing holes 18 and are fixedly connected with the rear shell screw fixing holes 21. The installation screws pass through the front cover screw fixing holes 18 and are fastened in the rear shell screw fixing holes 21, thereby fixing the front cover 1 and the rear shell 2. The front cover 1 is provided with a front cover convex groove 19, and the rear shell 2 is provided with a rear shell groove 22. A rubber sealing strip is provided inside the rear shell groove 22. This structure realizes the tight fixation of the front cover 1 and the rear shell 2, and at the same time, the front cover convex groove 19 presses the rubber sealing strip inside the rear shell groove 22 to enhance the sealing performance and realize the waterproof function.

[0031] In this embodiment, two rear shell wiring openings 17 are provided at the bottom of the rear shell 2. The steel cable lifting rope is fixed to the rear shell 2 through the wiring openings, so that the node equipment side walls at the tunnel site can be quickly deployed, reducing the difficulty of equipment deployment in the complex construction environment of the tunnel.

[0032] In this embodiment, a battery placement slot 15 and a battery slot buckle 16 are provided on the back of the rear shell 2, and the battery pack 5 is placed separately in the battery placement slot 15 of the device rear shell 2 and fixed with the battery slot buckle 16. The buckle fixing design not only improves the maintenance convenience and safety of the device, but also optimizes the space utilization and heat dissipation performance, enhances the stability and durability of the device, and improves the user experience.

[0033] The manufacturer of the wall-mounted wireless data acquisition and transmission node instrument used for tunnel advance detection described in the utility model only needs to produce, assemble and reserve each module according to the requirements. The node instrument has the characteristics of being sturdy, waterproof, dustproof, explosion-proof, fast wireless transmission speed, high wireless synchronization accuracy and fast tunnel side wall deployment, and can meet the data acquisition needs for geological disaster advance prediction in complex tunnel construction environments.

[0034] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A wall-mounted wireless data acquisition and transmission node instrument for advanced detection of geological disasters in tunnel excavation, characterized in that: It includes a shell and a data acquisition real-time transmission module for detecting seismic wave signals, the shell includes a front cover and a rear shell, the data acquisition real-time transmission module includes a wiring port, a shell connector, a wireless acquisition real-time transmission control hardware circuit board, a signal line and a battery pack, the shell connector includes an antenna base and an external antenna, the wireless acquisition real-time transmission control hardware circuit board is fixed inside the rear shell, and the signal line connected to the shell connector is connected to the corresponding wiring port of the wireless acquisition real-time transmission control hardware circuit board.

2. According to claim 1, a wall-mounted wireless data acquisition and transmission node device for advanced detection of geological disasters in tunneling, characterized in that: The wireless acquisition real-time transmission control hardware circuit board includes a high-precision synchronization module and a Wi-Fi wireless transmission module.

3. According to claim 1, a wall-mounted wireless data acquisition and transmission node device for advanced detection of geological disasters in tunneling, characterized in that: The housing connector also includes a charging interface and a button switch.

4. According to claim 1, a wall-mounted wireless data acquisition and transmission node device for advanced detection of geological disasters in tunneling, characterized in that: The shell connector also includes a piezoelectric sensor interface and a three-color indicator light.

5. A wall-mounted wireless data acquisition and transmission node device for advanced detection of geological disasters in tunneling according to any one of claims 1 to 4, characterized in that: The front face of the front cover is recessed inwards to form a front cover concave surface, and the three-color indicator light is arranged on the front cover concave surface.

6. A wall-mounted wireless data acquisition and transmission node device for advanced detection of geological disasters in tunneling according to any one of claims 1 to 4, characterized in that: The external antenna is a rubber stick antenna, which is detachably connected to the antenna base on the back shell.

7. A wall-mounted wireless data acquisition and transmission node device for advanced detection of geological hazards in tunneling according to any one of claims 1 to 4, characterized in that: The front cover is provided with front cover screw fixing holes at the four corners, and the rear shell is provided with rear shell screw fixing holes at the four corners. The mounting screws pass through the front cover screw fixing holes and are fixedly connected with the rear shell screw fixing holes. The front cover and the rear shell are respectively provided with front cover convex grooves and rear shell concave grooves on the opposite surfaces, and a rubber sealing ring is provided in the rear shell groove.

8. The wall-mounted wireless data acquisition and transmission node device for advanced detection of geological disasters in tunneling according to claim 1 is characterized by: The bottom of the rear shell is provided with two rear shell wiring openings, through which the steel cable lifting rope is fixed to the rear shell.

9. The wall-mounted wireless data acquisition and transmission node device for advanced detection of geological disasters in tunneling according to claim 1 is characterized in that: A battery slot and a battery slot buckle are provided on the back of the rear shell. The battery pack is placed separately in the battery slot and fixed with the battery slot buckle.

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