Intelligent flexible guardrail system and automatic early warning method thereof

Abstract

The invention discloses an intelligent flexible guardrail system and an automatic early warning method thereof. The system comprises a plurality of guardrail units, and an anti-collision springback structure is arranged in a stand column; a sensing and communication subsystem; a remote monitoring platform; the system is configured to monitor the state information of the guardrail in real time through the toppling early warning module; when the state information meets an early warning condition, early warning information is sent to the remote monitoring platform through the wireless communication unit; and the remote monitoring platform generates alarm information according to the early warning information and sends the alarm information to a terminal. According to the invention, the posture of the guardrail is sensed in real time through the toppling early warning module integrated in the stand column, and the data is uploaded through the wireless communication unit; after the remote monitoring platform receives the attitude abnormal information, alarm information can be automatically generated and pushed to the management terminal, so that active and rapid traffic safety early warning and response are realized; meanwhile, the anti-collision springback structure can effectively absorb and dissipate impact energy, and the vehicle and passengers are protected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of road traffic safety facilities, and further relates to an intelligent flexible guardrail system and an automatic early warning method thereof. BACKGROUND

[0002] Road guardrails are important traffic safety facilities, which are used to isolate lanes, prevent vehicles from crossing boundaries and reduce the consequences of collision accidents. Traditional guardrails mainly rely on material strength and structural rigidity to provide passive protection, and have the following obvious defects:

[0003] First, there is no intelligent early warning capability. The existing guardrails cannot actively and timely alarm the management personnel after being hit or overturned, and can only rely on manual patrol or report by passing vehicles, which leads to serious lag in accident response and may cause secondary accidents or serious traffic congestion.

[0004] Second, the protection performance needs to be optimized. Although the traditional rigid guardrails can effectively block vehicles when hit, the huge impact force may cause serious injury to the vehicle and passengers; while some flexible guardrails can buffer, but lack effective energy management and impact isolation mechanism, which may cause the impact range to expand.

[0005] Therefore, it is necessary to design an intelligent flexible guardrail system and an automatic early warning method to solve the above problems. SUMMARY

[0006] In view of the above technical problems, the purpose of the present application is to provide an intelligent flexible guardrail system and an automatic early warning method, which can realize real-time sensing of the posture of the guardrail through the overturning early warning module integrated in the column, and upload data through the wireless communication unit; the remote monitoring platform can automatically generate and push alarm information to the management terminal after receiving the posture abnormal information, so as to realize active and rapid traffic safety early warning and response; at the same time, the anti-collision rebound structure can effectively absorb and dissipate impact energy to protect the vehicle and passengers.

[0007] In order to achieve the above purpose, the present application provides an intelligent flexible guardrail system, which comprises:

[0008] A plurality of guardrail units, each of which comprises a guardrail body and a column supporting the guardrail body, and the column is internally provided with an anti-collision rebound structure;

[0009] A sensing and communication subsystem, which at least comprises an overturning early warning module arranged in the column and a wireless communication unit in communication connection with the overturning early warning module;

[0010] A remote monitoring platform for receiving and processing data sent by the wireless communication unit;

[0011] The system is configured to:

[0012] monitoring the state information of the guardrail in real time through the dumping early warning module;

[0013] When the state information meets the early warning condition, sending early warning information to the remote monitoring platform through the wireless communication unit;

[0014] The remote monitoring platform generates and sends alarm information to the terminal according to the early warning information.

[0015] In some embodiments, the guardrail body is made of at least one of glass fiber reinforced composite material, carbon fiber composite material or high polymer material;

[0016] And / or, the anti-collision rebound structure includes at least one of spring, rubber buffer or polyurethane elastomer.

[0017] In some embodiments, the dumping early warning module includes at least one of three-axis acceleration sensor, gyroscope and tilt sensor, and is configured to collect acceleration, angular velocity and tilt angle data of the guardrail unit in real time.

[0018] In some embodiments, the wireless communication unit uses one of low-power wide-area network communication module, narrowband Internet of Things communication module or low-power Bluetooth module;

[0019] The system is configured to trigger sending of the early warning information to the remote monitoring platform when the tilt angle of the guardrail unit continues to exceed the preset threshold and reaches a set time length.

[0020] In some embodiments, the outer surface of the guardrail unit is provided with a luminous unit;

[0021] The luminous unit includes long-acting light storage type coating and / or embedded LED light emitting module.

[0022] In some embodiments, adjacent guardrail units are connected through a breakpoint connection structure;

[0023] The breakpoint connection structure is configured to break when subjected to an impact exceeding a preset strength.

[0024] In some embodiments, the guardrail body is provided with a replaceable functional panel;

[0025] The functional panel is one of cultural propaganda board, advertising board or information indication board.

[0026] In some embodiments, the dumping early warning module and the wireless communication unit are powered by built-in closed lithium battery or solar power supply unit.

[0027] In some embodiments, the remote monitoring platform is further configured to store historical maintenance records and early warning data, and to establish an accident risk model based on the historical data.

[0028] According to another aspect of the present application, the present application further provides an automatic early warning method for the intelligent flexible guardrail system according to any one of the above, comprising the following steps:

[0029] The posture data of the guardrail unit is collected in real time by the dumping early warning module;

[0030] The collected posture data is filtered and the posture angle is calculated, and compared with a preset abnormal threshold;

[0031] When the posture data exceeds the abnormal threshold, the early warning information is sent to the remote monitoring platform through the wireless communication unit;

[0032] The remote monitoring platform automatically generates an alarm notification containing guardrail location information according to the early warning information, and pushes it to at least one designated terminal.

[0033] Compared with the prior art, the intelligent flexible guardrail system and the automatic early warning method thereof provided by the present application have at least one of the following beneficial effects:

[0034] In the present application, through the built-in sensing and communication subsystem, the state of the guardrail can be monitored in real time, and when an accident occurs, a second-level automatic alarm is generated, and the accident location is accurately positioned, greatly shortening the rescue and disposal time, effectively preventing secondary accidents; the anti-collision rebound structure can effectively absorb and dissipate impact energy, protecting the vehicle and the passengers; the breakpoint connection structure can be broken in the event of a serious impact, avoiding the transmission of impact force to adjacent guardrails, causing "domino effect" damage, thereby localizing the damage and significantly reducing maintenance costs and scope; the night light unit ensures visibility in night and low light environments; the replaceable cultural propaganda board endows the guardrail with cultural display function, beautifying the urban environment.

[0035] The present application is not a simple hardware stack, but a complete Internet of Things system from real-time perception at the front end, to intelligent decision-making in the cloud, to terminal collaborative response, providing reliable data support and control means for smart traffic and urban management. BRIEF DESCRIPTION OF DRAWINGS

[0036] The above features, technical characteristics, advantages and implementation modes of the present application will be further described in a clear and understandable manner in combination with the optional embodiments and the accompanying drawings.

[0037] Figure 1 is a structural schematic diagram of the guardrail unit according to an optional embodiment of the present application;

[0038] Figure 2 is a structural schematic diagram of a column of an optional embodiment of the present application;

[0039] Figure 3 is a structural schematic diagram of a column in an inclined state of an optional embodiment of the present application;

[0040] Figure 4 is a structural schematic diagram of a guardrail unit in a disconnected state of an optional embodiment of the present application.

[0041] BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Guardrail unit 1, guardrail body 11, column 12, anti-collision rebound structure 121, luminous unit 13, break point connecting structure 14, function panel 15. DETAILED DESCRIPTION

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0044] In order to make the drawing simple, only the parts related to the application are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the parts with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one".

[0045] It should be further understood that the term "and / or" used in the specification and claims of the present application means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0046] In this paper, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0048] In one embodiment, referring to the attached drawings Figures 1 to 4 The intelligent flexible guardrail system provided by the present application comprises: a plurality of guardrail units 1, a sensing and communication subsystem, and a remote monitoring platform. Each guardrail unit 1 comprises a guardrail body 11 and a stand column 12 supporting the guardrail body 11, and the stand column 12 is internally provided with an anti-collision rebound structure 121. The sensing and communication subsystem at least comprises a tipping early warning module arranged in the stand column 12 and a wireless communication unit in communication connection with the tipping early warning module. The remote monitoring platform is used for receiving and processing data sent by the wireless communication unit. The system is configured to: monitor the state information of the guardrail in real time through the tipping early warning module; when the state information meets the early warning condition, send early warning information to the remote monitoring platform through the wireless communication unit; and the remote monitoring platform generates and sends alarm information to a terminal according to the early warning information.

[0049] In the embodiment, the anti-collision rebound structure 121 and the tipping early warning module are integrated in the stand column 12 of each guardrail unit 1, thereby realizing all-weather real-time sensing and intelligent analysis of the state of the guardrail. When the guardrail has an abnormal posture due to collision or other external force, the system can automatically determine and trigger early warning, and send signals in real time to the remote monitoring platform through the wireless communication unit. After receiving the early warning, the remote monitoring platform automatically generates an alarm notification containing location information and pushes it to a related management terminal, thereby realizing a second-level response to a traffic accident and accurate positioning.

[0050] In one embodiment, referring to the attached drawings Figures 1 to 4 The guardrail body 11 is made of at least one of a glass fiber reinforced composite material, a carbon fiber composite material, or a high polymer polymer material. For example, the guardrail body 11 is made of a composite guardrail profile made of an epoxy resin or an unsaturated polyester resin as a matrix and glass fiber gauze and high-strength fiber fabric as reinforcing materials. The stand column and the guardrail crossbeam can be produced by winding forming or mold pressing forming process. In the winding forming process, the reinforcing fibers are laid according to the tensile and impact directions and are immersed in the resin for curing, so as to obtain a guardrail component with high strength and good weather resistance. After forming, the curing process of the guardrail component is optimized (the curing temperature and time are controlled), and a weather-resistant coating is sprayed on the surface to improve the ultraviolet resistance.

[0051] Further, the anti-collision rebound structure 121 is a metal spiral spring, a rubber elastic ring, or a PU rebound material. When a vehicle collision causes the stand column 12 to tilt in a certain direction, the elastic buffer unit can be compressed or deformed, thereby absorbing and buffering the impact force. For example, a spring mounting position is reserved in the stand column 12, so that the stand column 12 is displaced along the direction of the spring and stores energy when impacted. After the impact ends, the rebound force of the spring pushes the stand column 12 back to the original position, realizing automatic recovery of the guardrail. The anti-collision rebound structure not only ensures safe buffering during collision, but also enables the guardrail to recover without manual resetting after being subjected to a strong impact, greatly reducing the maintenance requirement.

[0052] Further, the tilt angle or acceleration sensor installed in each column 12 continuously collects the current tilt angle and acceleration data of the guardrail. The sensor periodically broadcasts the data to nearby base stations through a low-power Bluetooth 5.0 module. The base station, equipped with a remotely powered wireless communication unit (including a 4G data module), is deployed on both sides of the road and can receive Bluetooth signals within a 150-meter radius. When the system detects that the tilt angle of a column exceeds the preset threshold, the controller will automatically trigger a warning and upload the location information and status of the column to the cloud server through the 4G network. After receiving the warning, the server can issue an alarm through the traffic police command system or maintenance management platform and arrange nearby maintenance personnel or police to go to the scene to handle it, ensuring timely disposal of the accident and preventing more risks.

[0053] Further, the dumping warning module and Bluetooth are powered by fully enclosed disposable lithium batteries, which have long life and extreme environment resistance. For example, each sensing node uses an industrial-grade lithium sulfonyl chloride battery, which can work continuously for more than 5 years under normal broadcast cycles; the node device shell is designed to be waterproof and dustproof to adapt to outdoor high-temperature, low-temperature, or rainy and snowy environments. The base station side is equipped with a conventional power supply and 4G data backhaul facility, which can achieve all-weather uninterrupted operation.

[0054] Further, the outer layer of the guardrail body 11 or the column 12 is coated with high-brightness fluorescent powder paint or embedded with LED self-luminous units, making the guardrail unit 1 emit a uniform and soft halo at night. The use of weather-resistant fluorescent materials containing F-C bonds enables them to absorb sunlight during the day and emit light for several hours at night. When passing through the guardrail unit 1 at night, pedestrians and drivers can clearly see the luminous guardrail with their naked eyes, thereby playing a warning and guiding role and improving road safety.

[0055] Further, adjacent guardrail units 1 are connected through a breakpoint connection structure 14; the breakpoint connection structure 14 is configured to break when subjected to an impact exceeding a preset strength. For example, the guardrail beams are arranged in a bidirectional symmetrical manner, and each beam and column are connected by bolts of a certain strength. The bolts are designed as controlled load-bearing breakpoints that remain secure under normal conditions. When the impact force exceeds the bolt load threshold, the bolt or connector breaks, causing the impact force to be concentrated on the broken single beam segment, preventing the force from being transmitted to other guardrail segments. The broken guardrail segment can be quickly repaired by simply replacing the bolts or beams without replacing the entire guardrail segment.

[0056] Further, the guardrail body 11 is provided with a replaceable functional panel 15; the functional panel 15 is one of a cultural propaganda board, an advertising board or an information indicating board. For example, the functional panel 15 in the middle of the guardrail can adopt tempered glass or aluminum plastic plate material, and display city patterns or Chinese cultural patterns through printing or film pasting. The functional panel 15 and the guardrail body 11 can be connected by buckles or threads, facilitating installation and replacement. According to different festivals or themes, different pictures can be replaced, improving the cultural atmosphere of urban roads.

[0057] Further, the remote monitoring platform is also used for storing historical maintenance records and early warning data, and establishing an accident risk model based on historical data. Based on these multi-dimensional and long-time sequence historical information, the system can construct an accident risk prediction model, identify high-frequency accident road sections and high-risk guardrail nodes, and provide decision support for road safety management; through data analysis, the platform can early warn potential risk points, assist relevant departments in optimizing resource allocation and formulating accurate maintenance plans, thereby comprehensively improving the proactive warning capability and intelligent management level of the road security system.

[0058] According to another aspect of the present application, with reference to the drawings attached Figures 1 to 4 The present application further provides an automatic early warning method based on the intelligent flexible guardrail system according to any one of the above, comprising the following steps:

[0059] The posture data of the guardrail unit 1 is collected in real time through the dumping early warning module;

[0060] The collected posture data is subjected to filtering processing and posture angle calculation, and compared with a preset abnormal threshold value;

[0061] When the posture data exceeds the abnormal threshold value, early warning information is sent to the remote monitoring platform through the wireless communication unit;

[0062] The remote monitoring platform automatically generates an alarm notification containing guardrail position information according to the early warning information, and pushes it to at least one designated terminal.

[0063] In this embodiment, the posture data of the guardrail is first collected in real time through the dumping early warning module, and is subjected to filtering processing and posture angle calculation to improve the accuracy and reliability of the data; the system automatically compares the processed data with a preset abnormal threshold value, and once an abnormal posture is monitored, early warning information is immediately sent to the remote monitoring platform through the wireless communication unit; after receiving the information, the remote monitoring platform automatically generates an alarm notification containing the specific position of the accident, and pushes it to one or more designated terminals. The automatic response from real-time perception, intelligent judgment, rapid communication to accurate alarm is realized, the time window for accident discovery and disposal is greatly shortened, and the timeliness and systematicness of road traffic safety management are effectively improved.

[0064] In the above embodiments, the description of each embodiment has its own focus, and the parts not described or recorded in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0065] It should be noted that the above embodiments can be freely combined as needed. The above are only optional embodiments of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can also be made, which should be considered as the protection scope of the present application.

Claims

1. An intelligent flexible guardrail system, characterized in that, include: Multiple guardrail units, each guardrail unit including a guardrail body and a column supporting the guardrail body, the column being provided with an anti-collision rebound structure; The sensing and communication subsystem includes at least a tipping warning module disposed within the column and a wireless communication unit communicatively connected to the tipping warning module. A remote monitoring platform is used to receive and process data sent by the wireless communication unit; The system is configured as follows: The tilting warning module monitors the status information of the guardrail in real time. When the status information meets the warning conditions, the warning information is sent to the remote monitoring platform through the wireless communication unit. The remote monitoring platform generates and sends alarm information to the terminal based on the early warning information.

2. The intelligent flexible guardrail system according to claim 1, characterized in that, The main body of the guardrail is made of at least one of glass fiber reinforced composite material, carbon fiber composite material or polymer material. And / or, the anti-collision rebound structure includes at least one of a spring, a rubber buffer, or a polyurethane elastomer.

3. The intelligent flexible guardrail system according to claim 1, characterized in that, The tipping warning module includes at least one of a three-axis accelerometer, a gyroscope, and a tilt sensor, and is configured to collect the acceleration, angular velocity, and tilt angle data of the guardrail unit in real time.

4. The intelligent flexible guardrail system according to claim 3, characterized in that, The wireless communication unit adopts one of a low-power wide area network communication module, a narrowband Internet of Things communication module, or a low-power Bluetooth module. The system is configured to send the warning information to the remote monitoring platform when the tilt angle of the guardrail unit continuously exceeds a preset threshold and reaches a set duration.

5. The intelligent flexible guardrail system according to claim 1, characterized in that, The outer surface of the guardrail unit is equipped with a luminous unit; The luminescent unit includes a long-lasting phosphorescent coating and / or an embedded LED light-emitting module.

6. The intelligent flexible guardrail system according to claim 1, characterized in that, Adjacent guardrail units are connected by a breakpoint connection structure; The breakpoint connection structure is configured to break when subjected to an impact exceeding a preset strength.

7. The intelligent flexible guardrail system according to claim 1, characterized in that, The guardrail body is equipped with a replaceable function panel; The function panel is one of a cultural propaganda board, an advertising board, or an information indicator board.

8. The intelligent flexible guardrail system according to claim 1, characterized in that, The tilt warning module and the wireless communication unit are powered by a built-in enclosed lithium battery or a solar power unit.

9. The intelligent flexible guardrail system according to any one of claims 1-8, characterized in that, The remote monitoring platform is also used to store historical maintenance records and early warning data, and to establish accident risk models based on historical data.

10. An automatic early warning method based on the intelligent flexible guardrail system according to any one of claims 1 to 9, characterized in that, Includes the following steps: The tilting warning module collects the posture data of the guardrail unit in real time. The collected attitude data is filtered and the attitude angle is calculated, and then compared with a preset anomaly threshold. When the attitude data exceeds the abnormal threshold, an early warning message is sent to the remote monitoring platform through the wireless communication unit; The remote monitoring platform automatically generates an alarm notification containing guardrail location information based on the early warning information and pushes it to at least one designated terminal.

Images