Highway curtain type early warning device

Abstract

This invention provides a highway curtain-type early warning device, relating to the technical field of highway traffic safety equipment. It includes: a storage box, a drive mechanism housed within the storage box, a curtain body wound around the drive mechanism, and an intelligent controller located inside the drive mechanism. The storage box has an open side with a pre-set receiving space. The drive mechanism is located within the receiving space and connected to the inner wall of the storage box. The working surface of the curtain body is covered with a wide-angle reflective film and equipped with an LED light strip, with its end away from the drive mechanism connected to a base plate. The intelligent controller controls the working status of each component. This invention can rapidly deploy upstream of a sudden incident, forming a physical curtain with high-intensity reflective function, forcibly intervening in the driver's visual perception, providing intuitive and undeniable on-site risk warnings, effectively reducing the probability of secondary or even multiple chain traffic accidents, and minimizing casualties and property damage.

Description

Technical Field

[0001] This invention relates to the field of highway traffic safety equipment technology, and in particular to a highway curtain-type early warning device. Background Technology

[0002] In modern transportation systems, highways, as key transportation hubs, play a vital role in national economic development and social operation. Their efficient and rapid passage capacity greatly facilitates the flow of people and goods between regions. However, highways are also prone to various emergencies, such as road collapses, serious traffic accidents, and severe weather disasters. If these events are not promptly and effectively warned and handled, they can lead to extremely serious consequences.

[0003] Currently, emergency response methods for highway incidents mainly rely on upstream variable message signs, roadside broadcasts, and flashing lights. However, in actual traffic scenarios, vehicles generally travel at high speeds, and drivers are prone to fatigue or distraction. Especially in adverse weather conditions such as heavy fog, rain, or snow, visibility is severely impaired. These factors combined make it easy for drivers to ignore existing warning information, or for it to be noticed too late. Vehicles may not have enough time to brake or avoid collisions, leading to serious secondary or even multiple chain-reaction accidents. This not only causes numerous casualties and property damage but also results in prolonged traffic disruptions, bringing significant negative impacts to society. Secondly, Existing technologies for information transmission rely on dynamic variable message signs, real-time warnings based on vehicle-road cooperative perception systems, and high-precision navigation map event push notifications. However, these technologies only provide drivers with relevant information and lack necessary enforcement mechanisms to ensure drivers actually receive the information and comply with the warnings. On the other hand, in terms of physical barriers, common practices include placing crash barriers, mobile guardrails, and cones at accident scenes. While these methods can provide some visual warnings, they heavily rely on manual deployment and have slow response times. Moreover, in certain special road sections, such as bridges and long tunnels, manual deployment is not only inefficient but also poses significant safety risks. Summary of the Invention

[0004] The purpose of this invention is to provide a highway curtain-type early warning device to solve the technical problems existing in the prior art.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows:

[0006] A highway curtain-type early warning device includes: a storage box, a drive mechanism disposed within the storage box, a curtain body wound around the drive mechanism, and an intelligent controller disposed inside the drive mechanism; the storage box has an open side and a preset receiving space; the drive mechanism is located within the receiving space and is connected to the inner wall of the storage box; the working surface of the curtain body is covered with a wide-angle reflective film and is equipped with an LED light strip, the end of which is connected to a base plate away from the drive mechanism, the base plate has a preset weight and is adapted to the working size of the storage box; the intelligent controller is used to control the working status of each component.

[0007] Furthermore, the inner walls on both sides of the storage box are provided with guide mechanisms, which are located on both sides of the curtain body.

[0008] Furthermore, the top working surface of the storage box is provided with an installation mechanism, and there are multiple installation mechanisms, which are equidistantly arranged along the axial direction of the storage box.

[0009] Furthermore, the drive mechanism includes: a DC geared motor and a roller connected to the output end of the DC geared motor; the roller is fitted with an aluminum roller tube and is fixedly connected to one end of the curtain body; one end of the roller is rotatably connected to a bearing seat through a tail plug, and the bearing seat is connected to the inner wall of the storage box.

[0010] Furthermore, the installation mechanism includes: a mounting base and a U-shaped clamp that engages with the mounting base; the mounting base is connected to the top working surface of the storage box via a connecting block, and threaded holes are opened at both ends; the U-shaped clamp is threadedly connected to the threaded holes, and one end is threadedly connected to a nut.

[0011] Furthermore, the guiding mechanism includes: a fixed end and a movable end slidably connected to the inner wall of the fixed end; the fixed end is connected to the inner wall of the storage box through a mounting block, and a sliding groove is opened on both sides of its inner wall. A limiting block is provided on the working surface at the bottom of the sliding groove, and the limiting block is used to limit the movement stroke of the movable end; pulleys are provided on both sides of the movable end, and the pulleys are slidably connected to the sliding groove; a counterweight steel ball is provided inside the movable end.

[0012] Furthermore, both the storage box and the base plate are provided with a magnetic attraction mechanism. The magnetic attraction mechanism includes multiple electromagnets provided on the working surface at the bottom of the storage box and a magnetic attraction component provided on the working surface at the top of the base plate. The magnetic attraction component can be magnetically connected to the electromagnets.

[0013] Furthermore, a counterweight is provided at the connection between the curtain body and the base plate.

[0014] Furthermore, the intelligent controller has a built-in safety redundancy mechanism. The intelligent controller executes the following steps: S1: The communication link between the local and remote monitoring platforms and the system controller maintains normal bidirectional heartbeat communication, and an extreme fault judgment threshold is preset; the electromagnet is energized. S2: Two independent monitoring paths are started simultaneously to execute detection tasks in real time. S3: After receiving a sudden event alarm from the front-end monitoring camera, the remote monitoring platform sends a pop-up notification to the on-duty monitoring personnel. After verifying the authenticity of the event and the necessity of the warning through the on-site footage, the monitoring personnel issue a manual intervention warning command through the intelligent controller, triggering the warning execution process. 4: When the local controller detects a main power supply interruption or a communication link interruption with the system controller / remote monitoring platform, the local controller continuously times the abnormal state. If the duration of the abnormal state exceeds a preset threshold, the judgment result is synchronized to the system controller. S5: After receiving the major disaster judgment result uploaded by the local controller, the system controller locks the local autonomous execution permission. For major disaster scenarios accompanied by damage to power and communication infrastructure, it unconditionally ignores any remote control commands, automatically issues the highest priority early warning execution command, and forcibly triggers the warning device to perform a rapid descent warning action; at the same time, it activates the safety redundancy mechanism.

[0015] Furthermore, the monitoring path in step S2 includes: Path A, which is electrically connected to the monitoring camera to collect road conditions 200-500m before and after the camera in real time, identify the type of disaster through the system algorithm, and then transmit the abnormal data to the remote monitoring platform; Path B, in which the intelligent controller detects the power supply status and the communication link status with the remote monitoring platform in real time, and decides whether to activate the safety redundancy mechanism based on the dynamic data.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (i) Through the setting of the driving mechanism, the curtain body, the base plate and the counterweight, the present invention can be quickly deployed upstream of an emergency to form a physical curtain with high-intensity reflective function, forcibly intervene in the driver's visual perception, provide intuitive and undeniable on-site risk warnings, effectively reduce the probability of secondary or even multiple chain traffic accidents, improve highway traffic safety, and reduce casualties and property losses.

[0018] (ii) This invention enables rapid unmanned deployment through remote control and automatic power-off triggering. Compared with physical barriers that rely on manual deployment, the response speed is greatly improved. In the face of emergencies, the curtain can be quickly deployed on site for early warning. Especially in special road sections such as bridges and long tunnels or in the early stages of large-scale emergencies, it can play a timely role and improve the efficiency of highway emergency management.

[0019] (III) This invention maintains normal bidirectional heartbeat communication between the local and remote monitoring platforms and the system controller through a safety redundancy mechanism, and presets extreme fault judgment thresholds. At the same time, it starts two independent monitoring paths for real-time detection. When an abnormal situation such as main power supply interruption or communication link interruption is detected and the duration exceeds the preset threshold, the system controller can unconditionally ignore the remote control command, automatically issue a warning execution command, and forcibly trigger the warning action to ensure that the device can operate reliably under various complex conditions and ensure the effective realization of the warning function. In addition, the hanging flexible curtain does not pose a rigid collision risk to the vehicle, but can play a strong visual impact and psychological barrier role, thus taking into account safety. Attached Figure Description

[0020] Figure 1 This is a perspective view of a highway curtain-type early warning device disclosed in this invention;

[0021] Figure 2 This is an overall diagram of a highway curtain-type early warning device disclosed in this invention;

[0022] Figure 3 This is a perspective view of the drive mechanism of a highway curtain-type early warning device disclosed in this invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the drive mechanism of a highway curtain-type early warning device disclosed in this invention;

[0024] Figure 5 This is a perspective view of the installation mechanism of a highway curtain-type early warning device disclosed in this invention;

[0025] Figure 6 This is a schematic diagram of the internal structure of the guide mechanism of a highway curtain-type early warning device disclosed in this invention;

[0026] Figure 7 This is a flowchart of the safety redundancy mechanism of a highway curtain-type early warning device disclosed in this invention.

[0027] In the diagram: 1. Storage box; 2. Drive mechanism; 201. DC geared motor; 202. Aluminum tube; 203. Bearing seat; 204. Reel; 205. Tail plug; 3. Curtain body; 4. Base plate; 5. Mounting mechanism; 501. Connecting block; 502. Mounting base; 503. U-shaped clamp; 504. Nut; 6. Guide mechanism; 601. Mounting block; 602. Fixed end; 6021. Slide groove; 603. Moving end; 6031. Counterweight steel ball; 6032. Pulley; 7. Magnetic attraction mechanism; 701. Electromagnet; 702. Magnetic component; 8. Counterweight block. Detailed Implementation

[0028] To make the content of this invention easier to understand, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0029] like Figure 1-2As shown, this embodiment provides a highway curtain-type warning device, including: a storage box 1, a drive mechanism 2 disposed within the storage box 1, a curtain body 3 wound around the drive mechanism 2, and an intelligent controller disposed inside the drive mechanism 2; the storage box 1 has an open side and a preset receiving space to ensure that all components can be reasonably placed therein; the drive mechanism 2 is located within the receiving space and connected to the inner wall of the storage box 1, providing stable and reliable power support for the unfolding and retracting of the curtain body 3; the curtain body 3 is made of high-strength polyester fabric with double-sided PVC coating, and diamond-grade wide-angle reflective film is applied at intervals on the working surface, and Equipped with high-brightness LED light strips, it not only possesses excellent tear resistance, UV resistance, and resistance to high and low temperatures, rain, and snow, but also flame retardant and has a certain degree of self-cleaning performance. This upgrades the visual warning image from merely visible to an immersive experience of passive reflection and active illumination, forming a dual optical warning structure. It should be noted that none of the above configurations will affect the driver's driving. The end of the screen body 3 furthest from the drive mechanism 2 is connected to the base plate 4. The base plate 4 has a preset weight and is adapted to the working size of the storage box 1, allowing it to fit snugly against the bottom working surface of the storage box 1 when the screen body 3 is retracted. A counterweight 8 is provided at the connection between the screen body 3 and the base plate 4. The counterweight 8 enhances the stability of the curtain body 3 during deployment, enabling it to maintain a vertical and flat state even in harsh environments such as strong winds common on highways, ensuring that warning information is always clearly and accurately displayed to drivers of passing vehicles. The intelligent controller controls the working status of various components, achieving a series of complex operations such as starting and stopping the drive mechanism 2, unfolding and retracting the curtain body 3, and controlling the LED light strip through precise command transmission and coordination. Simultaneously, the intelligent controller also possesses powerful data processing and analysis capabilities, capable of receiving real-time data from various sensors such as weather sensors and accident detection sensors, and... According to preset algorithms and rules, the device automatically judges the current road conditions of the highway and adjusts its working mode and early warning strategy in a timely manner to achieve intelligent and adaptive early warning functions. The inner walls on both sides of the storage box 1 are provided with guide mechanisms 6, which are located on both sides of the curtain body 3. The guide mechanisms 6 guide the curtain body 3 to move smoothly along a predetermined path, avoiding deviation, twisting or other adverse phenomena during movement. The top working surface of the storage box 1 is provided with multiple installation mechanisms 5, which are equidistantly arranged along the axial direction of the storage box 1, so that the entire device can be firmly installed on the relevant facilities of the highway and is easy to install and maintain.

[0030] like Figure 3-4As shown, the drive mechanism 2 includes a DC geared motor 201 and a roller 204 connected to the output end of the DC geared motor 201. The DC geared motor 201, as a power source, provides continuous and reliable power for the entire drive process due to its stable output characteristics. The DC geared motor 201 has strong torque output capability, enabling precise control of the rotation speed and direction of the roller 204 under different working conditions, meeting the different speed and force requirements of the curtain body 3 during unfolding and retraction. The main power supply of the DC geared motor 201 is supplied by the 220V circuit of existing highway equipment. The LRS-200-24 type 24V switching power supply conversion switch inside the dedicated distribution box of this device is used to convert it to DC. The key innovation lies in the inclusion of... The system incorporates a large-capacity, maintenance-free battery pack and an intelligent charging and discharging management module. When the main power supply is interrupted due to non-emergency events, the system remotely switches to battery power to ensure the operation of core functions. The roller 204 is fitted with an aluminum roller tube 202 and is fixedly connected to one end of the curtain body 3. One end of the roller 204 is rotatably connected to the bearing seat 203 via a tail plug 205. The bearing seat 203 is connected to the inner wall of the storage box 1. The tail plug 205 can precisely limit the axial position of the roller 204, preventing axial movement during rotation and providing a stable transition between the roller 204 and the bearing seat 203. In use, the DC geared motor 201 starts and drives the roller 204 to rotate. The winding and unfolding of the curtain body 3 are controlled by different rotation directions.

[0031] like Figure 5 As shown, the installation mechanism 5 includes: a mounting base 502 and a U-shaped clamp 503 that engages with the mounting base 502; the mounting base 502 is connected to the top working surface of the storage box 1 via a connecting block 501, and threaded holes are opened at both ends; the U-shaped clamp 503 is threadedly connected to the threaded holes, and one end is threadedly connected to a nut 504 to further enhance the stability of the connection; in the actual installation process, it is only necessary to engage the U-shaped clamp 503 with the highway gantry and other highway facilities, and then thread the U-shaped clamp 503 to the threaded holes, and finally tighten it with the nut 504. The whole operation process is simple and easy.

[0032] like Figure 6As shown, the guiding mechanism 6 includes: a fixed end 602 and a movable end 603 slidably connected to the inner wall of the fixed end 602; the fixed end 602 is connected to the inner wall of the storage box 1 through a mounting block 601, and sliding grooves 6021 are formed on both sides of its inner wall. A limiting block is provided on the working surface at the bottom of the sliding groove 6021. The limiting block is used to limit the movement stroke of the movable end 603, effectively preventing the movable end 603 from malfunctioning due to exceeding a reasonable range during movement, thus ensuring the reliable operation of the guiding mechanism 6; pulleys 6032 are provided on both sides of the movable end 603, and the pulleys 6032 are connected to the sliding grooves... 6021 Sliding connection; The movable end 603 is equipped with a counterweight steel ball 6031 inside. The setting of the pulley 6032 greatly reduces the friction, making the movement of the movable end 603 smoother and more flexible; At the same time, the movable end 603 is equipped with a counterweight steel ball 6031 inside; The presence of the counterweight steel ball 6031 not only increases the overall weight of the movable end 603, enabling it to maintain better balance and stability during movement and automatically fall as the base plate 4 opens, but also helps to counteract the inertial force generated by the movement of the curtain during the curtain's opening and closing, further ensuring the stability of the curtain's operation.

[0033] Furthermore, both the storage box 1 and the base plate 4 are equipped with magnetic attraction mechanisms 7. The magnetic attraction mechanism 7 includes multiple electromagnets 701 located on the bottom working surface of the storage box 1 and a magnetic attractor 702 located on the top working surface of the base plate 4. The magnetic attractor 702 can be magnetically connected to the electromagnets 701. The electromagnets 701 can generate a sufficient magnetic field when energized. The magnetic attractor 702 is made of neodymium iron boron and can generate a strong magnetic connection with the electromagnets 701 at the bottom of the storage box 1. When the curtain body 3 is folded up and stored in the storage box, the electromagnets 701 are energized to generate a magnetic field, which attracts each other with the magnetic attractor 702 on the base plate 4, and the two are tightly attached. When it is necessary to unfold the curtain body 3, it is only necessary to control the electromagnets 701 to be de-energized, and the base plate 4 will smoothly detach from the storage box 1 under the action of gravity and the drive mechanism, and the curtain will unfold accordingly.

[0034] like Figure 7 As shown, the intelligent controller has a built-in security redundancy mechanism, and the intelligent controller performs the following steps:

[0035] S1: The local and remote monitoring platforms and system controllers maintain normal two-way heartbeat communication through video intranet and 4G / 5G wireless communication links, and preset extreme fault judgment thresholds. In this embodiment, the preset threshold is ≥8s, and the underlying early warning trigger logic is burned and locked. The electromagnet 701, which is matched with the early warning curtain actuator, is energized and excited to generate a stable attraction force to fix the early warning curtain body 3 in a high-position retracted state. The whole device completes the full-process early warning preparation and enters the 7×24h all-time real-time monitoring mode.

[0036] S2: Simultaneously activate two physically isolated, non-interfering, and redundant independent monitoring paths to execute detection tasks in real time, achieving comprehensive coverage of both routine emergencies and extreme disasters; the monitoring paths include:

[0037] Path A is electrically connected to the monitoring camera, which collects images of the road surface and surrounding environment 200-500m in front and behind in real time. Relying on the built-in intelligent recognition algorithm, the image content is analyzed in real time, and various types of emergencies and disasters such as collapse, collision, bridge collapse, and flood damage are automatically identified. Then, the abnormal data is transmitted to the remote monitoring platform through the video intranet and 4G / 5G wireless communication link, and the abnormal data, event type and real-time on-site images are transmitted synchronously.

[0038] In path B, the intelligent controller monitors the power supply status and the communication link status with the remote monitoring platform in real time, synchronously caches and reports the collected dynamic status data in real time, and decides whether to activate the safety redundancy mechanism based on the dynamic data to achieve local autonomous decision-making and backup under extreme working conditions.

[0039] S3: After receiving an emergency alarm from the front-end monitoring camera, the remote monitoring platform sends a pop-up notification to the on-duty monitoring personnel, simultaneously displaying real-time footage, the type of abnormal event, and location information. The monitoring personnel then complete on-site verification and event confirmation, forming a two-branch processing logic. After verifying the authenticity of the event and the necessity of the warning through the on-site footage, the monitoring personnel issue a manual intervention warning command through the intelligent controller, triggering the warning execution process. The two-branch processing logic is as follows:

[0040] If the event confirmation result is negative, it is determined to be a false alarm and there is no need for an early warning. The system will not trigger any early warning action, and the signal will be returned to the local controller, directly returning to the normal real-time monitoring mode.

[0041] If the event confirmation result is yes, that is, a real emergency has been confirmed and an early warning needs to be activated, the monitoring personnel can send a manual intervention early warning command to the local controller through the system controller. After the command signal returns to the controller, the local controller directly controls the warning device to activate the early warning action. After the early warning action is completed, the early warning end process begins. After the on-site danger is completely eliminated, the system controls the warning device to be returned to the storage box 1, the device is reset and returns to the normal duty state.

[0042] S4: When the local controller detects a main power supply interruption or a communication link interruption with the system controller / remote monitoring platform, the local controller continuously times the abnormal state. If the duration of the abnormal state exceeds a preset threshold, the local controller synchronizes the judgment result to the system controller; and simultaneously executes the hierarchical judgment and secondary verification logic:

[0043] If the duration of the abnormal state does not reach the preset threshold, it is determined to be a transient fluctuation fault, and the safety redundancy mechanism is not triggered. The abnormal state signal is returned to the local controller, and the system automatically starts the secondary verification program to re-determine the status of power and communication signals.

[0044] If the duration of the abnormal state reaches or exceeds the preset threshold, the local controller immediately determines that a major disaster has occurred on site, accompanied by the simultaneous damage to power and communication infrastructure, and simultaneously synchronizes the major disaster determination result to the system controller in real time, triggering the highest priority safety redundancy mechanism;

[0045] S5: After receiving the major disaster assessment result uploaded by the local controller, the system controller locks its local autonomous execution authority. For major disaster scenarios accompanied by damage to power and communication infrastructure, it unconditionally ignores any remote control commands and automatically issues the highest-priority early warning execution command, forcibly triggering the warning device to perform a rapid descent warning action; simultaneously, it activates a safety redundancy mechanism; specifically including:

[0046] (I) Ultimate physical early warning for extreme disasters: When a major disaster such as bridge collapse, road collapse, severe collision, or flood damage occurs ahead of the vehicle, directly causing the device's power cable to be physically broken and the main power supply circuit to be completely interrupted, the early warning device will not require any manual operation, system command issuance, or additional power supply support. The early warning curtain will instantly drop and issue an early warning under its own gravity, achieving a purely physical active early warning without electrical control or communication intervention.

[0047] (II) Redundancy of backup batteries to prevent malfunctions and ensure controllability under all operating conditions: In the event of power outages such as mains power failures or non-catastrophic circuit faults that do not cause physical damage to the power cables, the dedicated backup battery pack configured on site immediately switches over and takes over the power supply of the entire system, continuously providing stable power to the local controller, system controller, communication link and early warning actuator, ensuring the normal operation of the device with all functions. Under this condition, the device can receive and execute legal control commands issued by the remote monitoring platform normally throughout the process. If an unnecessary early warning or curtain malfunctions due to a momentary interruption of mains power, the actuator can be driven by the battery power to complete the curtain retraction and end the early warning, completely avoiding the problem of false early warnings caused by non-catastrophic power outages, and realizing full controllability of the device under any power supply condition.

[0048] It should be noted that this safety redundancy mechanism is equipped with a pure physical structure ultimate power failure rapid descent fallback design. When an extreme emergency occurs on site, causing physical damage to the power cable and a complete interruption of the main power supply circuit of this device, the power supply circuit of the electromagnet will be cut off simultaneously, regardless of whether the system controller issues a warning command. After the electromagnet is de-energized, it immediately loses its magnetism and cannot maintain the attraction and fixation of the warning curtain. The warning curtain will automatically complete an instantaneous rapid descent and fall under its own gravity, realizing a pure physical fallback warning without electrical control or communication intervention, and completely ensuring that the device can still stably perform its core warning mission under the worst-case scenario.

[0049] When using:

[0050] Based on the braking distance formula and driver reaction time, this device is positioned in the warning initiation zone upstream of the incident point, at a specific distance. According to vehicle speed Estimation was performed using a preset threshold of 8 seconds and a curtain descent time of 2 seconds: The installation process takes into account a certain safety margin. Typically, the installation site is selected 200-500m upstream of the incident location, prioritizing the use of existing gantry frames. Operators connect the U-shaped clamp 503 to the gantry frame, and then tighten the nut 504 into the threaded connection of the U-shaped clamp 503 for fixation. When the warning execution process is triggered, the electromagnet 701 is de-energized. At this time, the magnetic component 702 disconnects from the electromagnet 701. Simultaneously, the base plate 4, counterweight 8, curtain body 3, and guide mechanism 6 fall naturally due to gravity. Then, the DC geared motor 201 starts, driving the roller 204 to rotate. The roller 204 then unfolds the curtain body 3. Once the curtain body 3 is fully unfolded, passing drivers can clearly see the warning text and high-brightness LED light strip on the curtain body 3.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A highway curtain-type early warning device, characterized in that: include: Storage box (1), drive mechanism (2) disposed in the storage box (1), curtain body (3) wrapped around the drive mechanism (2), and intelligent controller disposed inside the drive mechanism (2); The storage box (1) has an open side and a pre-set storage space; The drive mechanism (2) is located within the receiving space and is connected to the inner wall of the storage box (1); The working surface of the curtain body (3) is covered with a wide-angle reflective film and is equipped with an LED light strip. The end of the curtain body (3) away from the drive mechanism (2) is connected to the base plate (4). The base plate (4) has a preset weight and is adapted to the working size of the storage box (1). The intelligent controller is used to control the working status of each component.

2. The highway curtain-type early warning device according to claim 1, characterized in that: The storage box (1) has guide mechanisms (6) on both sides of its inner walls, and the guide mechanisms (6) are located on both sides of the curtain body (3).

3. The highway curtain-type early warning device according to claim 1 or 2, characterized in that: The storage box (1) has an installation mechanism (5) on its top working surface. There are multiple installation mechanisms (5), which are equidistantly arranged along the axial direction of the storage box (1).

4. The highway curtain-type early warning device according to claim 1, characterized in that: The drive mechanism (2) includes: a DC geared motor (201) and a roller (204) connected to the output end of the DC geared motor (201); the roller (204) is fitted with an aluminum roller tube (202) and fixedly connected to one end of the curtain body (3); one end of the roller (204) is rotatably connected to the bearing seat (203) through a tail plug (205), and the bearing seat (203) is connected to the inner wall of the storage box (1).

5. The highway curtain-type early warning device according to claim 3, characterized in that: The installation mechanism (5) includes: a mounting base (502) and a U-shaped clamp (503) that engages with the mounting base (502); the mounting base (502) is connected to the top working surface of the storage box (1) via a connecting block (501), and threaded holes are opened at both ends; the U-shaped clamp (503) is threadedly connected to the threaded holes, and one end is threadedly connected to a nut (504).

6. The highway curtain-type early warning device according to claim 2, characterized in that: The guiding mechanism (6) includes: a fixed end (602) and a movable end (603) slidably connected to the inner wall of the fixed end (602); the fixed end (602) is connected to the inner wall of the storage box (1) through a mounting block (601), and a sliding groove (6021) is opened on both sides of its inner wall. A limiting block is provided on the working surface at the bottom of the sliding groove (6021), and the limiting block is used to limit the movement stroke of the movable end (603); pulleys (6032) are provided on both sides of the movable end (603), and the pulleys (6032) are slidably connected to the sliding groove (6021); a counterweight steel ball (6031) is provided inside the movable end (603).

7. The highway curtain-type early warning device according to claim 1, characterized in that: Both the storage box (1) and the base plate (4) are provided with magnetic attraction mechanisms (7). The magnetic attraction mechanism (7) includes multiple electromagnets (701) provided on the bottom working surface of the storage box (1) and a magnetic attraction component (702) provided on the top working surface of the base plate (4). The magnetic attraction component (702) can be magnetically connected to the electromagnets (701).

8. The highway curtain-type early warning device according to claim 1, characterized in that: A counterweight (8) is provided at the connection between the curtain body (3) and the base plate (4).

9. The highway curtain-type early warning device according to claim 1, characterized in that: The intelligent controller has a built-in security redundancy mechanism, and the intelligent controller performs the following steps: S1: The communication link between the local and remote monitoring platform and the system controller maintains normal bidirectional heartbeat communication and presets an extreme fault judgment threshold. The electromagnet (701) is energized. S2: Simultaneously activate two independent monitoring paths to execute detection tasks in real time; S3: After receiving an emergency alarm from the front-end monitoring camera, the remote monitoring platform will display a pop-up notification to the on-duty monitoring personnel. After monitoring personnel verify the authenticity of the event and the necessity of the warning through the on-site footage, they issue a manual intervention warning command through the intelligent controller, triggering the warning execution process. S4: When the local controller detects a main power supply interruption or a communication link interruption with the system controller / remote monitoring platform, the local controller continuously times the abnormal state. If the duration of the abnormal state exceeds a preset threshold, the judgment result is synchronized to the system controller. S5: After receiving the major disaster assessment result uploaded by the local controller, the system controller locks the local autonomous execution authority. In the case of major disaster scenarios accompanied by damage to power and communication infrastructure, it unconditionally ignores any remote control commands, automatically issues the highest priority early warning execution command, and forcibly triggers the warning device to perform the rapid descent warning action; at the same time, it activates the safety redundancy mechanism.

10. The highway curtain-type early warning device according to claim 9, characterized in that: The monitoring path in step S2 includes: Path A is electrically connected to the monitoring camera to collect road conditions 200-500m before and after the camera in real time. The system algorithm identifies the type of disaster and then transmits the abnormal data to the remote monitoring platform. In path B, the intelligent controller monitors the power supply status and the connectivity status of the communication link with the remote monitoring platform in real time, and decides whether to activate the safety redundancy mechanism based on the dynamic data.

Images