A pier anti-collision alarm device combining a honeycomb energy dissipation structure and a pressure-sensitive conductive gel

Abstract

This invention discloses a bridge pier anti-collision alarm device combining a honeycomb energy-dissipating structure and pressure-sensitive conductive gel. A signal transmission module is mounted on the bridge pier. A conductive concave hexagonal honeycomb structure layer is installed on the outer surface of the bridge pier, and a spring buffer assembly is positioned between the outer sheath and the conductive concave hexagonal honeycomb structure layer. The conductive concave hexagonal honeycomb structure layer consists of multiple concave hexagonal structures arranged in a honeycomb pattern. A conductive probe is fixedly installed on the inner top side of each concave hexagonal structure. Each concave hexagonal structure is filled with pressure-sensitive electrogel. Several concave hexagonal structures form a concave hexagonal structure unit. An electrode patch is placed on the outer side of any one of the concave hexagonal structures within the concave hexagonal structure unit. The electrode patch is connected to the signal processing module via wires.

Description

Technical Field

[0001] This invention belongs to the field of bridge protection technology, and in particular relates to a bridge pier anti-collision alarm device that combines a honeycomb energy-dissipating structure and a pressure-sensitive conductive gel. Background Technology

[0002] Currently, bridge anti-collision structures mostly adopt the form of steel casings, rubber buffer pads, or polyurethane energy-absorbing layers. Although these structures can absorb impact energy to a certain extent, they still have the following shortcomings: 1. The stiffness and deformation capacity of the energy-absorbing materials are fixed, making it difficult to adapt to different levels of impact loads; commonly used anti-collision materials such as rubber, polyurethane, and foamed aluminum are mostly disposable energy absorbers, which are prone to permanent deformation after being subjected to force, making it difficult to restore their original shape, requiring frequent maintenance and replacement, resulting in short service life and high maintenance costs;

[0003] 2. Traditional collision avoidance structures mainly rely on passive energy absorption, lacking real-time monitoring and information feedback functions for the impact process. After an accident, manual inspection or post-accident judgment is still required, resulting in a delayed response. 3. Energy dissipation depends on a single material or unidirectional deformation mechanism. After local damage, the overall collision avoidance performance drops rapidly, making it difficult to guarantee the long-term stability of the system. 4. In existing intelligent collision avoidance systems, the mechanical energy absorption layer and signal detection layer are mostly independent structures with poor coupling. The signal transmission path is complex and easily damaged by impact. Some electrical sensing components experience signal drift and environmental interference during long-term service, resulting in insufficient accuracy and timeliness of early warning.

[0004] Based on the above problems, the existing bridge anti-collision systems generally suffer from defects such as low energy absorption efficiency, delayed monitoring response, weak anti-interference ability, and insufficient intelligence. There is an urgent need for a new type of bridge pier anti-collision device that can take into account efficient energy absorption, structural stability, and timely alarm capabilities. Summary of the Invention

[0005] Purpose of the invention: To address the problem of insufficient utilization of satellite energy in existing technologies, this invention proposes a dynamic energy allocation method for remote sensing satellite mission planning.

[0006] Technical solution: This invention discloses a bridge pier anti-collision alarm device combining a honeycomb energy-dissipating structure and pressure-sensitive conductive gel, including: an anti-collision protection module, a signal processing module, and a signal transmission module; the signal transmission module is installed on the bridge pier;

[0007] The impact protection module includes an outer sheath, a spring buffer assembly, a conductive concave hexagonal honeycomb structure layer, and a pressure-sensitive conductive gel; the signal transmission module includes: wires and electrode patches.

[0008] The conductive concave hexagonal honeycomb structure layer is installed on the outer surface of the bridge pier. A spring buffer assembly is positioned between the outer sheath and the conductive concave hexagonal honeycomb structure layer to offset low-energy impacts. The outer sheath, located on the outermost layer, withstands primary external impacts and provides protection for the internal structure. The conductive concave hexagonal honeycomb structure layer comprises multiple concave hexagonal structures arranged in a honeycomb pattern. A conductive probe is fixed to the inner top of each concave hexagonal structure. Each concave hexagonal structure is filled with conductive gel and is made of conductive material. Several concave hexagonal structures form a concave hexagonal structure unit. An electrode patch is placed on the outer side of any concave hexagonal structure within the unit. The electrode patch is connected to the signal processing module via wires.

[0009] When the bridge pier is subjected to an impact that the spring buffer assembly cannot offset, the concave hexagonal structure in the conductive concave hexagonal honeycomb structure layer is compressed and deformed. The electrical signal generated by the pressure-sensitive conductive gel is collected by the conductive probe and transmitted to the electrode patch through the structure itself. The electrode patch transmits the signal to the signal processing module through the wire. The signal processing module analyzes the received signal and determines the impact level of the bridge pier.

[0010] Furthermore, the signal processing module includes: a signal processing system, a battery, and a wireless transmission system; the electrode patch is connected to the signal processing system, the signal processing system analyzes the received signal to determine the impact level of the bridge pier, and uploads the processed result to the monitoring system through the wireless transmission system. If the impact level exceeds a preset level threshold or the impacted part is a set important part, the signal processing system sends an alarm message to the monitoring terminal through the wireless transmission system. The battery powers the signal processing system and the wireless transmission system.

[0011] Furthermore, the outer sheath is made of reinforced rubber.

[0012] Furthermore, the spring buffer assembly is made of high-strength steel.

[0013] Furthermore, the concave hexagonal structure is made of copper-plated stainless steel.

[0014] Furthermore, the conductive probe is made of silver-plated copper.

[0015] Furthermore, the outer layer of the conductive concave hexagonal honeycomb structure is also wrapped with an insulating rubber layer to ensure structural safety and prevent the risk of electric shock.

[0016] Furthermore, the pressure-sensitive conductive gel uses polyacrylamide as the polymeric gel matrix, carbon nanotubes to form a conductive mesh, silver-coated copper microparticles as conductive fillers, and glycerol as a buffer solution.

[0017] Furthermore, after receiving the signal, the signal transmission module amplifies, filters, and analyzes the signal, then calculates the average resistance change rate of the corresponding concave hexagonal structural unit of the electrode patch, presets the resistance change rate range in advance, and classifies the impact level according to the range to determine the impact level of the bridge pier.

[0018] Beneficial effects:

[0019] This device constructs a three-stage energy absorption system consisting of a sheath spring, a concave hexagonal honeycomb structure, and a pressure-sensitive conductive gel. This system automatically dissipates energy in stages based on impact levels, improving collision protection reliability. The pressure-sensitive resistor properties of the conductive gel allow the impact force to be directly converted into a measurable electrical signal, enabling self-sensing of the structure itself. The conductive honeycomb structure itself serves as the electrical signal transmission channel, and in conjunction with conductive probes, signal acquisition can be completed without internal wiring, reducing system construction difficulty and improving system reliability and impact resistance. The electrical signals from this invention, after being analyzed by the signal processing system, can achieve multi-level alarms and be remotely reported via a wireless transmission system. The built-in battery provides power at any time and is replaceable, ensuring timely and reliable system monitoring. This invention's system adopts a modular design, resulting in a simple structure and convenient maintenance, making it suitable for collision protection scenarios such as bridge piers and bridge anti-collision piles. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure;

[0021] Figure 2 This is a schematic diagram of the structural installation.

[0022] Figure 3 This is a cross-sectional view of a concave hexagonal honeycomb anti-collision structure;

[0023] Figure 4 This is a cross-sectional view of a concave hexagonal energy-dissipating honeycomb structure unit;

[0024] Figure 5 This is a schematic diagram of the internal workings of the signal processing module;

[0025] Explanation of reference numerals in the attached diagram: 1. Outer sheath; 2. Spring buffer assembly; 3. Conductive concave hexagonal honeycomb structure layer; 4. Pressure-sensitive conductive gel; 5. Insulating rubber layer; 6. Conductive probe; 7. Wire; 8. Electrode patch; 9. Signal processing module; 10. Signal processing system; 11. Wireless transmission system; 12. Battery. Detailed Implementation

[0026] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0027] like Figure 1 ,2 As shown in Figure 3, the device of the present invention includes three modules: an anti-collision protection module, a signal transmission module, and a signal processing module; it contains multiple components.

[0028] The impact protection module includes: an outer sheath 1, a spring buffer assembly 2, a conductive concave hexagonal honeycomb structure layer 3, and a pressure-sensitive conductive gel 4;

[0029] The signal transmission module includes: wire 7, conductive probe 6, and electrode patch 8;

[0030] The signal processing module includes: a signal processing system 10, a wireless transmission system 11, and a battery 12.

[0031] The outer sheath is installed on the outer surface of the pier to withstand the initial external impact and provide protection for the internal structure; several sets of buffer springs are fixed on its inner side as the first-level anti-collision buffer.

[0032] When the device is in operation, the outer sheath 1 is first subjected to impact load, which is then transferred to the spring buffer assembly 2 to achieve the first stage of impact load buffering. The outer sheath and spring can absorb smaller impact loads to ensure that the internal honeycomb buffer structure does not undergo large deformation. This measure can avoid false alarms when the device is subjected to small impacts. Under medium and large energy level impacts, the lower honeycomb buffer structure begins to work.

[0033] like Figure 3 , 4 As shown, a conductive concave hexagonal honeycomb energy-dissipating structure layer, located inside the spring buffer layer, is composed of multiple layers of honeycomb-shaped concave hexagonal structures stacked together. The cell walls are interconnected in a honeycomb pattern, forming a multi-directionally expandable overall structure, serving as the second level of impact buffer. A pressure-sensitive conductive gel, filled within the concave hexagonal structural unit, is prepared by combining a polyacrylamide matrix, carbon nanotube conductive filler, and silicon-based buffer solution. Under pressure, its resistance changes significantly, generating an electrical signal, serving as the third level of impact buffer and the primary signal sensing medium. Pressure-sensitive conductive gel 4 fills the interior of each concave hexagonal cell, forming a closed, independent pressure-sensitive unit. This gel combines flexible buffering and resistance change response functions. When the concave hexagonal energy-dissipating structure deforms under pressure, the conductive gel undergoes multi-axial compression, rearranging its internal conductive pathways and generating a resistance change, thus converting the impact force into an electrical signal. A conductive probe 6 is installed on the upper wall of each honeycomb structural unit. This probe detects and transmits the electrical signal generated by the conductive gel, achieving signal acquisition.

[0034] The concave hexagonal structure is made of conductive copper-plated stainless steel with a 120° concave angle. Under axial compression, the structure exhibits a tendency to contract both laterally and axially, allowing the conductive gel 4 filling the cells to withstand multi-directional compression. When an external impact exceeds the response range of the buffer spring assembly 2, the energy-dissipating structural layer begins to deform, significantly improving the overall energy absorption efficiency. Because the structure is conductive throughout, a rubber insulating layer 5 is wrapped around the outer layer to ensure structural safety and prevent accidents.

[0035] Conductive probes are installed inside the honeycomb structure to collect electrical signals within each honeycomb cell; electrode patches are located on the outer side of the honeycomb structure layer to lead out and conduct the signals to the signal processing module. This invention divides multiple concave hexagonal structures into a concave hexagonal unit, and places the patch electrode on the outer side of any one of the concave hexagons within this unit. For example... Figure 1 As shown in Figure 2, in this embodiment, the entire conductive concave hexagonal honeycomb energy dissipation structure layer is divided into left and right sides, that is, two units, left and right. For the right unit, the patch electrode is set on the outside of the concave hexagonal structure located on the outer side of the right unit. For the left unit, the patch electrode is set on the outside of the concave hexagonal structure located on the outer side of the left unit. The two patch electrodes form a loop and are connected to the signal processing module.

[0036] The overall electrical signal transmission path of the structure is as follows: the pressure-sensitive conductive gel 4 generates an electrical signal, the conductive probe 6 detects and collects the electrical signal, and the signal is conducted through the conductive concave hexagonal honeycomb structure layer 3 to the electrode patch 8 attached to the outside of the structure. The signal is then transmitted to the signal processing module 9 installed on the bridge pier via the wire 7, forming a complete circuit loop.

[0037] The signal processing module is installed on the bridge pier, such as Figure 5 As shown, the system includes a signal processing system 10, a wireless communication system 11, and a battery 12. The signal processing system amplifies, filters, and analyzes the electrical signals generated by the gel (in this embodiment, the electrode patch cannot identify which concave hexagonal structure the received signal belongs to; if the received signal is weak, it is filtered out). It calculates the rate of change of resistance before and after the impact. Since one electrode patch corresponds to multiple concave hexagonal structures, the average value is used when calculating the rate of change of resistance. If there are multiple electrode patches, the average value can be calculated again as the overall rate of change of resistance of the device. Based on factors such as traffic flow and shipping flow in the area where the bridge pier is located, the system sets impact levels I, II, and III. The signal processing system will determine the impact level and issue a corresponding level alarm. The wireless transmission system will send the alarm information to the monitoring center. The internal battery can automatically charge the alarm system and the wireless transmission system in the electrical signal processing system to ensure stable operation of the system.

[0038] The overall conductive honeycomb structure is made of copper-plated stainless steel to ensure structural strength and stable conductivity.

[0039] The conductive probe is made of silver-plated copper and is installed on the inner wall of the honeycomb cell to maintain stable contact with the gel and output cell electrical signals.

[0040] The spring assembly between the outer sheath and the overall conductive honeycomb structure is made of high-strength steel helical springs, which preferentially absorb small-energy impacts and avoid false alarms.

[0041] The main control processing unit of the signal processing system is equipped with self-calibration and temperature compensation algorithms to ensure stable operation in high humidity, high temperature and high interference environments.

[0042] The wireless transmission system employs a multi-channel redundant communication architecture, prioritizing the use of local low-power wide-area networks or cellular networks as the primary transmission channel. When the primary link becomes unavailable, it automatically switches to a near-field long-distance link or local relay. When all ground links are unavailable, satellite short messages or narrowband satellites serve as backup channels. The system prioritizes the real-time nature of alarm messages and retransmits historical records and diagnostic logs after available links are restored, ensuring reliable alarm and data logging even under poor signal conditions and extreme weather conditions.

[0043] The wireless transmission system is connected to the cloud database of the remote monitoring center, which can update the pier status information in real time and support multi-node networking to achieve synchronous monitoring of multiple anti-collision units.

[0044] The entire device adopts a modular design, which facilitates disassembly, maintenance and replacement in the later stage, ensuring long-term reliable operation of the system.

[0045] This invention integrates energy absorption, signal acquisition, and intelligent alarm functions. The device is highly modular, easy to replace and maintain, and inexpensive, making it suitable for the long-term service environment of bridge piers.

[0046] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

Claims

1. A bridge pier anti-collision alarm device combining a honeycomb energy-dissipating structure and pressure-sensitive conductive gel, characterized in that, include: Impact protection module, signal processing module, and signal transmission module; The signal transmission module is installed on the bridge pier; The impact protection module includes an outer sheath, a spring buffer assembly, a conductive concave hexagonal honeycomb structure layer, and a pressure-sensitive conductive gel; the signal transmission module includes: wires and electrode patches. The conductive concave hexagonal honeycomb structure layer is installed on the outer surface of the bridge pier. A spring buffer assembly is positioned between the outer sheath and the conductive concave hexagonal honeycomb structure layer to offset low-energy impacts. The outer sheath, located on the outermost layer, withstands primary external impacts and provides protection for the internal structure. The conductive concave hexagonal honeycomb structure layer comprises multiple concave hexagonal structures arranged in a honeycomb pattern. A conductive probe is fixed to the inner top of each concave hexagonal structure. Each concave hexagonal structure is filled with conductive gel and is made of conductive material. Several concave hexagonal structures form a concave hexagonal structure unit. An electrode patch is placed on the outer side of any concave hexagonal structure within the unit. The electrode patch is connected to the signal processing module via wires. When the bridge pier is subjected to an impact that the spring buffer assembly cannot offset, the concave hexagonal structure in the conductive concave hexagonal honeycomb structure layer is compressed and deformed. The electrical signal generated by the pressure-sensitive conductive gel is collected by the conductive probe and transmitted to the electrode patch through the structure itself. The electrode patch transmits the signal to the signal processing module through the wire. The signal processing module analyzes the received signal and determines the impact level of the bridge pier.

2. The bridge pier anti-collision alarm device combining a honeycomb energy-dissipating structure and pressure-sensitive conductive gel according to claim 1, characterized in that, The signal processing module includes a signal processing system, a battery, and a wireless transmission system. The electrode patch is connected to the signal processing system. The signal processing system analyzes the received signals to determine the impact level of the bridge pier and uploads the processed results to the monitoring system via the wireless transmission system. If the impact level exceeds a preset threshold or the impacted part is a designated critical part, the signal processing system sends an alarm message to the monitoring terminal via the wireless transmission system. The battery powers the signal processing system and the wireless transmission system.

3. The bridge pier anti-collision alarm device combining a honeycomb energy-dissipating structure and pressure-sensitive conductive gel according to claim 1, characterized in that, The outer sheath is made of reinforced rubber.

4. The bridge pier anti-collision alarm device combining a honeycomb energy-dissipating structure and pressure-sensitive conductive gel according to claim 1, characterized in that, The spring buffer assembly is made of high-strength steel.

5. The bridge pier anti-collision alarm device combining a honeycomb energy-dissipating structure and pressure-sensitive conductive gel according to claim 1, characterized in that, The concave hexagonal structure is made of copper-plated stainless steel.

6. The bridge pier anti-collision alarm device combining a honeycomb energy-dissipating structure and pressure-sensitive conductive gel according to claim 1, characterized in that, The conductive probe is made of silver-plated copper.

7. The bridge pier anti-collision alarm device combining a honeycomb energy-dissipating structure and pressure-sensitive conductive gel according to claim 1, characterized in that, The conductive concave hexagonal honeycomb structure layer is also wrapped with an insulating rubber layer to ensure structural safety and prevent electric shock.

8. The bridge pier anti-collision alarm device combining a honeycomb energy-dissipating structure and pressure-sensitive conductive gel according to claim 1, characterized in that, The pressure-sensitive conductive gel uses polyacrylamide as the polymeric gel matrix, carbon nanotubes to form a conductive mesh, silver-coated copper microparticles as conductive fillers, and glycerol as a buffer solution.

9. A bridge pier anti-collision alarm device combining a honeycomb energy-dissipating structure and pressure-sensitive conductive gel according to claim 1, characterized in that, After receiving the signal, the signal transmission module amplifies, filters, and analyzes the signal, then calculates the average resistance change rate of the corresponding concave hexagonal structural unit of the electrode patch, presets the resistance change rate range in advance, and classifies the impact level according to the range to determine the impact level of the bridge pier.

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