Laser warning system for road post-disaster emergency traffic control

Abstract

The invention relates to the technical field of road safety, in particular to a laser warning system for road post-disaster emergency traffic management and control, which comprises a monitoring device arranged on a road and used for monitoring a target road section in real time and outputting a monitoring signal; the controller is electrically connected to the monitoring device and receives a monitoring signal of the monitoring device; the laser alarm is used for being arranged on a road and electrically connected to the controller; wherein the controller triggers the laser alarm to emit a warning signal to a target road section according to the change of a monitoring signal of the monitoring device. According to the invention, real-time monitoring can be realized, laser warning can be triggered according to changes of monitoring signals, visual warning signals can be efficiently sent to passing vehicles aiming at serious road surface abnormal conditions of the road, the safety of the road in the using process is improved, road emergency traffic control is assisted, and the traffic safety of the road is improved. And the efficiency of road monitoring early warning and emergency traffic control is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of highway safety, and particularly to a laser warning system for post-disaster emergency traffic control on highways. Background Art

[0002] With the continuous expansion and high-speed development of the highway traffic network, the risks of highway construction and operation under complex terrain and extreme climate conditions have become increasingly prominent. Natural disasters (such as landslides, collapses, debris flows, etc.) occur frequently in mountainous areas, high altitudes, rainy environments, and geologically fragile areas, often causing road interruptions, vehicle damage, and even casualties. To reduce the losses caused by disasters, the current traditional highway disaster prevention measures mainly include:

[0003] Manual inspection or on-site observation: Staff conduct regular inspections or monitoring at fixed points and times.

[0004] Fixed warning signs: Reflective signs, warning posts, or guardrails are arranged on disaster-prone sections or temporary sections.

[0005] Temporary physical barriers: When actual collapses or large-scale landslides occur, the road is closed in the form of roadblocks, cones, etc.

[0006] Video monitoring or simple induction devices: Cameras are installed on key sections or simple geological monitoring instruments are used, and after detecting abnormalities, the management department is notified remotely.

[0007] However, these measures often have certain deficiencies at night or in sudden disasters. Firstly, the timeliness is insufficient. Manual inspections cannot achieve all-weather and real-time three-dimensional monitoring. Secondly, the visibility is limited. The warning effect of reflective signs or ordinary warning lights is easily weakened in bad weather such as thick fog, heavy rain, and low light. Moreover, there is a lack of automated linkage. Conventional warning devices are separated from monitoring devices, and timely and effective long-distance warnings cannot be triggered quickly after disasters occur. Summary of the Invention

[0008] In order to solve the technical problems existing in the prior art to a certain extent, the present invention provides a laser warning system for post-disaster emergency traffic control on highways, which helps to achieve real-time monitoring and trigger laser warnings according to changes in monitoring signals. For serious road surface anomalies on highways, it can efficiently give intuitive warnings to passing vehicles, improve the safety during highway use, assist in carrying out highway emergency traffic control, and improve the efficiency of highway monitoring and early warning and emergency traffic control.

[0009] A laser warning system for post-disaster emergency traffic control on highways according to the present invention includes:

[0010] A monitoring device, which is used to be set on a highway to monitor a target section in real time and output a monitoring signal;

[0011] A controller, electrically connected to the monitoring device and receiving the monitoring signal of the monitoring device;

[0012] A laser alarm, configured to be set on a road and electrically connected to the controller;

[0013] Wherein, the controller triggers the laser alarm to emit a warning signal to a target section according to the change of the monitoring signal of the monitoring device.

[0014] A laser warning system for post-disaster emergency traffic control of a road according to the present invention, wherein the monitoring device includes:

[0015] A monitoring signal line, configured to be set on a target section and relatively fixed with the road surface or laid on the road surface or buried inside the target section;

[0016] Wherein, the controller triggers the laser alarm to emit a laser warning signal to the target section according to a change monitoring signal exceeding a preset threshold generated by the monitoring signal line being torn or damaged by a collapsed section.

[0017] A laser warning system for post-disaster emergency traffic control of a road according to the present invention, wherein the number of the monitoring signal lines is several, and at least two of the monitoring signal lines are distributed on opposite sides of the target section.

[0018] A laser warning system for post-disaster emergency traffic control of a road according to the present invention, wherein the laser alarm includes:

[0019] A laser emitter, configured to be set on both sides of the target section and emit warning laser on the road;

[0020] A directional sound column, configured to be set on at least one side of the target section and emit warning sounds on the road;

[0021] Wherein, both the laser emitter and the directional sound column are electrically connected to the controller to trigger the laser emitter and the directional sound column together through the controller.

[0022] A laser warning system for post-disaster emergency traffic control of a road according to the present invention, wherein the number of the laser emitters is several, and each of the laser emitters is arranged and distributed along the length direction of the target section.

[0023] A laser warning system for post-disaster emergency traffic control of a road according to the present invention, wherein the laser emitters are distributed in pairs on opposite sides of the target section to form a laser fence by shooting at each other in the width direction of the road.

[0024] A laser warning system for post-disaster emergency traffic control on highways according to the present invention, the arrangement length range of several of the laser emitters is used to cover the length of the target section and respectively extends a certain distance beyond the front end and the rear end of the target section.

[0025] A laser warning system for post-disaster emergency traffic control on highways according to the present invention, each of the laser emitters is respectively provided with a plurality of light outlets, and the light outlets are arranged vertically to expand the height range of the laser fence on the highway.

[0026] A laser warning system for post-disaster emergency traffic control on highways according to the present invention, the light beam of the laser emitter is red laser, and the intensity of the light beam of the laser emitter is adjustable to cope with the highway conditions in complex weather.

[0027] A laser warning system for post-disaster emergency traffic control on highways according to the present invention, the number of the directional sound columns is several and they are used to be distributed on the opposite sides of the highway; the sound outlets of the directional sound columns are used to face the oncoming vehicle direction on the highway.

[0028] A laser warning system for post-disaster emergency traffic control on highways according to the present invention, the direction of the sound outlet of the directional sound column forms a certain angle with the oncoming vehicle direction on the highway.

[0029] A laser warning system for post-disaster emergency traffic control on highways according to the present invention, the played sound of the directional sound column includes voice broadcast.

[0030] A laser warning system for post-disaster emergency traffic control on highways according to the present invention, each of the monitoring signal lines is connected in parallel to the controller;

[0031] A part of the number of the monitoring signal lines is used to be parallel to the length direction of the target section, and a part of the number of the monitoring signal lines is used to be parallel to the width direction of the target section.

[0032] A laser warning system for post-disaster emergency traffic control on highways according to the present invention, one or more of a fiber optic sensor, a grating sensor, a vibrating wire sensor, a cable sensor, a pressure sensor, and a deformation sensor are carried on the monitoring signal line.

[0033] A laser warning system for post-disaster emergency traffic control on highways according to the present invention, the laser emitter and the directional sound column are respectively adapted to be fixedly connected to the outer guardrail of the highway.

[0034] A laser warning system for post-disaster emergency traffic control on highways according to the present invention mainly comprises a monitoring device, a controller and a laser alarm. The monitoring device serves as the front-end sensing unit, the controller serves as the central judgment unit, and the laser alarm serves as the back-end execution unit. The monitoring device monitors the roadbed and road surface of the target section. For example, when a highway collapses, the monitoring device detects an abnormality (such as deformation, fracture or significant change in other parameters), and sends the corresponding monitoring signal (such as change in resistance value, open circuit signal or tensile detection signal, etc.) to the controller. After receiving the monitoring signal from the monitoring device, the controller identifies the degree of danger of the target section through internal threshold determination, data analysis or logical control, etc. When the signal change reaches or exceeds the predetermined danger threshold, the controller determines that there is a disaster risk or a serious abnormal condition on the highway, and then outputs an instruction to trigger the laser alarm. If the signal is within the normal range, the laser alarm remains in an inactive state. Once the controller determines that the road hidden danger is serious and triggers the laser alarm, the laser alarm immediately emits a laser warning signal to the target section or the driving direction. This signal usually appears in the form of a high-brightness and highly visible laser beam, and has strong penetration and warning effects especially in the night or bad weather environment, reminding the vehicle drivers about to enter this section to pay attention to the danger, decelerate and stop in time or take a detour. It can be understood that since the monitoring device of this system can monitor the target section in real time and is connected to the controller for data communication, when the road surface undergoes structural deformation or danger, the system can automatically sense and quickly trigger an alarm. This feature greatly shortens the time difference from disaster discovery to warning release compared with the method that simply relies on patrol or manual observation, improving the warning timeliness. In addition, the warning signal emitted by the laser alarm has high brightness and directivity, and can play a good warning role in an environment with poor visibility (night, fog or heavy rain weather), significantly improving the visibility of road disasters in a bad environment, preventing vehicles from accidentally entering dangerous areas. After emitting the laser warning signal to the target section, passing vehicles can notice the abnormality from a long distance, and thus take measures such as decelerating, stopping or turning to detour in time, blocking the path for subsequent vehicles to enter the dangerous area. This solution is particularly important in post-disaster emergency management of highways, can effectively reduce the risk of secondary accidents caused by rear-end collisions, traffic jams, etc., and requires little manual intervention, thereby improving the reliability of post-disaster traffic control on highways and ensuring the remote management and dispatching of safety personnel, so that the technical solution of the present invention can produce comprehensive technical effects such as rapid response, intuitive warning and effective closure of dangerous sections, significantly improving the safety guarantee ability of post-disaster emergency traffic control on highways.

[0035] Therefore, it can be considered that a laser warning system for highway post-disaster emergency traffic control according to the present invention helps to achieve real-time monitoring and trigger laser warnings according to changes in monitoring signals. In response to serious pavement anomalies on highways, it can efficiently issue intuitive warnings to passing vehicles, enhance the safety during highway use, assist in highway emergency traffic control, and improve the efficiency of highway monitoring and early warning and emergency traffic control. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0037] Figure 1 is the system structure diagram of the present invention;

[0038] Figure 2 is the usage state diagram of the present invention;

[0039] Figure 3 is the usage state diagram of the present invention;

[0040] Figure 4 is the usage state diagram (top view) of the present invention.

[0041] REFERENCE NUMERALS:

[0042] 1. Laser emitter, 2. Directional sound column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0043] The following will describe in detail the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0044] As Figures 1 to 4As shown in the figure, a laser warning system for highway post-disaster emergency traffic control in this embodiment includes a monitoring device, a controller, and a laser alarm. The monitoring device is installed on the highway to monitor the target section in real time and outputs a monitoring signal. The controller is electrically connected to the monitoring device and receives the monitoring signal of the monitoring device. The laser alarm is installed on the highway and electrically connected to the controller. During use, the controller triggers the laser alarm to emit a warning signal to the target section according to the change of the monitoring signal of the monitoring device.

[0045] It can be understood that in this embodiment, the monitoring device serves as the front-end sensing unit, the controller serves as the central judgment unit, and the laser alarm serves as the back-end execution unit. The monitoring device monitors the roadbed and road surface of the target section. For example, if the highway collapses, the monitoring device detects abnormalities (such as deformation, fracture, or significant changes in other parameters) and sends corresponding monitoring signals (such as resistance value changes, open circuit signals, or tensile detection signals, etc.) to the controller. After receiving the monitoring signal of the monitoring device, the controller identifies the danger level of the target section through internal threshold determination, data analysis, or logical control, etc.; when the signal change reaches or exceeds the predetermined danger threshold, the controller determines that there is a disaster risk or a serious abnormal condition on the highway, and then outputs an instruction to trigger the laser alarm; if the signal is within the normal range, the laser alarm remains in an inactive state. Once the controller determines that the road hidden danger is serious and triggers the laser alarm, the laser alarm immediately emits a laser warning signal to the target section or the driving direction. This signal usually appears in the form of a high-brightness and highly visible laser beam, which has strong penetration and warning effects especially at night or in bad weather conditions, reminding the vehicle drivers about to enter this section to pay attention to the danger, decelerate and stop in time or detour.

[0046] It can be understood that since the monitoring device of this system can monitor the target road section in real time and is connected to the controller for data communication, when structural deformation or danger occurs on the road surface, the system can automatically sense and quickly trigger an alarm. This feature greatly shortens the time difference from disaster discovery to warning release compared to simply relying on patrols or manual observations, improving the timeliness of warnings. In addition, the warning signal emitted by the laser alarm has high brightness and directivity, and can play a good warning role in environments with poor visibility (night, foggy or heavy rain weather), significantly enhancing the visibility of road disasters in harsh environments, preventing vehicles from accidentally entering dangerous areas. After emitting a laser warning signal to the target road section, passing vehicles can notice the abnormality from a long distance and thus take timely measures such as decelerating, stopping or turning to detour, blocking the path for subsequent vehicles to enter the dangerous area. This solution is particularly important in post-disaster emergency management of highways, effectively reducing the risk of secondary accidents caused by rear-end collisions, traffic jams, etc., and requiring little manual intervention, thereby improving the reliability of post-disaster traffic control on highways and ensuring the remote management and dispatching of safety personnel, enabling the technical solution of the present invention to produce comprehensive technical effects such as rapid response, intuitive warning and effective closure of dangerous road sections, significantly enhancing the safety guarantee ability of post-disaster emergency traffic control on highways. Therefore, it can be considered that a laser warning system for post-disaster emergency traffic control on highways according to the present invention helps to achieve real-time monitoring and trigger laser warnings according to changes in monitoring signals, efficiently issue intuitive warnings to passing vehicles for serious abnormal road conditions on highways, enhance the safety during highway use, assist in carrying out post-disaster emergency traffic control on highways, and improve the efficiency of highway monitoring and early warning and post-disaster emergency traffic control.

[0047] In one embodiment, specifically, the monitoring device includes a monitoring signal line, which is installed on the target road section. Optionally, the monitoring signal line can be relatively fixed to the road surface of the target road section, or can be laid on the road surface of the target road section, or can be buried inside the target road section. When working, the controller triggers the laser alarm to emit a warning signal to the target road section according to the change monitoring signal exceeding the preset threshold value caused by the monitoring signal line being torn off or damaged by the collapsed road section. In this structure, the monitoring device is further defined to include a monitoring signal line, which is deployed on the target road section that needs to be monitored. Its installation method is diverse, and it can be relatively fixed to the road surface, such as by bonding, anchoring, etc. to make its position relatively stable; it can also be directly laid on the road surface, relying on its own weight or slight fixing measures to maintain its position; or further, buried inside the target road section, such as pre-buried in the roadbed or road surface structure layer. The condition for the controller to trigger the laser alarm is defined as the change monitoring signal exceeding the preset threshold value caused by the monitoring signal line being torn off or damaged by the collapsed road section. That is, the system judges the road surface condition based on the physical integrity of the monitoring signal line or the continuity of signal transmission. When a disaster such as a collapse of the road surface occurs, it is very likely that the monitoring signal line laid or buried in the area will be subjected to external forces, which will cause it to be torn or damaged, resulting in line breakage, signal attenuation, parameter abnormalities, etc. This physical damage or signal abnormality will cause significant changes in the monitoring signal. The controller pre-sets a preset threshold to define the boundary between normal signals and abnormal signals. Once the change amplitude of the monitoring signal received by the controller exceeds the threshold, it is determined that a road disaster has occurred, thereby triggering the laser alarm to start the warning.

[0048] It can be understood that the above-mentioned structure can sense the occurrence of road disasters more directly and quickly by adopting monitoring signal lines that are easily damaged by road collapse. Its technical effect is that the monitoring signal lines are directly laid or buried in the road surface, so that they can be directly affected by road deformation. When the road surface collapses, the monitoring signal lines are the first to be affected and are more likely to break or be damaged, thereby producing significant signal changes. Physical damage to the monitoring signal lines or signal anomalies are usually direct and rapid manifestations of disasters such as road collapse. Once the controller detects a signal change that exceeds the threshold, it can immediately trigger an alarm to achieve a rapid response and gain precious warning time. The monitoring signal line structure is relatively simple and easy to deploy and maintain, and the trigger mechanism based on physical damage or signal anomalies has high reliability and reduces the possibility of false alarms.

[0049] In one embodiment, specifically, the number of monitoring signal lines is several, and at least two monitoring signal lines are used to be distributed on opposite sides of the target section. In this structure, the number of monitoring signal lines being several indicates that multiple monitoring signal lines can be adopted in the system to enhance the reliability and coverage of monitoring. At least two of the monitoring signal lines being used to be distributed on opposite sides of the target section means that in the width direction of the road surface, monitoring signal lines are provided at least on both sides. This distribution method can more comprehensively monitor the overall condition of the road surface and avoid omissions caused by the limited monitoring range of a single monitoring signal line. For example, the monitoring signal lines distributed on both sides can simultaneously monitor the stability of the road shoulders or slopes on both sides of the road, or form redundant backups in the width direction of the road surface to improve the system reliability. Its technical purpose can be summarized as: by setting multiple monitoring signal lines and distributing them on opposite sides of the target section, the comprehensiveness and reliability of monitoring are improved, and the system's early warning ability for road disasters is enhanced. It can be understood that multiple monitoring signal lines can cover a wider road surface range. Especially in the width direction of the road, the monitoring signal lines distributed on both sides can simultaneously monitor the conditions on both sides of the road surface, reducing monitoring blind spots. By adopting multiple monitoring signal lines, even if one or several of them fail, the other monitoring signal lines can still continue to work, ensuring the basic monitoring function of the system, improving the reliability and robustness of the system. The monitoring signal lines distributed on both sides can more effectively monitor disaster types such as uneven settlement of the roadbed and transverse cracks that may cause differences in deformation of the road surface on both sides, improving the system's ability to identify different types of road disasters.

[0050] In one embodiment, specifically, the structure of the laser alarm includes a laser emitter 1 and a directional sound column 2. The laser emitter 1 is installed on at least one side of the target section and emits warning laser on the road. The directional sound column 2 is also installed on at least one side of the target section and emits warning sounds on the road. In addition, both the laser emitter 1 and the directional sound column 2 are electrically connected to the controller to trigger the laser emitter 1 and the directional sound column 2 together through the controller. In this structure, the laser alarm is composed of the laser emitter 1 and the directional sound column 2. The laser emitter 1 is arranged on at least one side of the target section, which means it can be arranged on one side or both sides. Its function is to emit warning laser on the road and form a striking visual warning signal by using the characteristics of high brightness and high directivity of the laser beam. The directional sound column 2 is also arranged on at least one side of the target section, and its function is to emit warning sounds on the road. By using the directional sound wave technology, the warning sounds are directionally propagated to the road driving area, reducing the interference to the surrounding environment. In addition, both the laser emitter 1 and the directional sound column 2 are electrically connected to the controller to be triggered together through the controller. This means that when the controller receives an abnormal monitoring signal and determines that a disaster has occurred, it will simultaneously send instructions to the laser emitter 1 and the directional sound column 2 to start them synchronously and jointly emit visual and auditory warning signals, forming a multi-sensory three-dimensional warning effect. Therefore, the technical purpose of this structure can be summarized as constructing a multi-modal laser alarm. Through the synergistic effect of laser visual warning and directional sound warning, the warning effect is improved, and the driver's perception and response ability to road disasters are enhanced. It can be understood that the laser emitter provides an intuitive and striking visual warning, and the directional sound column provides a clear and directional auditory warning. The synergistic effect of visual and auditory warning signals can more effectively attract the driver's attention and improve the warning effect. Especially in bad weather or when the driver's attention is distracted, the laser warning is effective at night and in low visibility conditions, and the directional sound column can also provide an effective auditory warning during the day or in a noisy environment. The combination of the two warning methods enables the system to play a good warning role under various weather and environmental conditions, having all-weather applicability. The directional sound wave technology of the directional sound column can concentrate the warning sounds and propagate them to the road driving area, reducing the noise interference to surrounding residential areas, the ecological environment or other lanes, and improving the accuracy and pertinence of the warning.

[0051] In one embodiment, specifically, the number of laser emitters 1 is several, and each laser emitter 1 is arranged and distributed along the length direction of the target road section. In this structure, multiple laser emitters are adopted in the system to enhance the range and intensity of laser warning. Each of the laser emitters 1 is arranged and distributed along the length direction of the target road section, which means that the multiple laser emitters are not concentratedly arranged, but are dispersedly arranged within the length range of the target road section along the extension direction of the road. This distribution method can form a continuous laser warning belt, covering a longer dangerous road section, and providing a more sufficient warning distance and reaction time for the driver. The technical purpose of this structure can be summarized as aiming to arrange and distribute multiple laser emitters along the length direction of the target road section to expand the coverage range of laser warning, form a continuous warning belt, and provide a longer-distance and more continuous warning signal for the driver. It can be understood that arranging multiple laser emitters along the length direction of the road can form a laser warning belt covering a longer distance, effectively warning a larger range of dangerous areas. The continuously distributed laser emitters can provide continuous visual warning for vehicles driving into the dangerous area, avoiding warning interruption or omission caused by the limited warning range of a single laser emitter. Multiple laser emitters working simultaneously can enhance the overall laser warning intensity, improve the visibility and penetration power of the warning signal, especially under adverse weather conditions.

[0052] In one embodiment, specifically, the laser emitters 1 are distributed in pairs on the opposite sides of the target road section, so as to form a laser fence by cross-firing in the width direction of the road. In this structure, the laser emitters 1 are distributed in pairs on the opposite sides of the target road section, which means that on the opposite sides in the width direction of the road, laser emitters are provided on both sides, and the laser emitters on both sides are arranged opposite to each other. Cross-firing in the width direction of the road to form a laser fence indicates that the laser beams emitted by the oppositely arranged laser emitters intersect or are arranged in parallel in the width direction of the road, forming a laser barrier across the road, similar to a fence. This laser fence can effectively block vehicle passage and provide a strong visual warning signal. The technical purpose of this structure can be summarized as aiming to form a laser fence across the road by arranging laser emitters in pairs on both sides of the road to construct a prominent and intuitive visual barrier, forcefully guiding vehicles to stop or detour, and achieving more effective traffic control. It can be understood that through the above structure, the laser fence spans across the road, forming a clearly visible visual barrier, generating a strong visual impact on the driver, intuitively indicating that the road ahead is closed or there is danger, guiding the driver to stop or detour. The laser fence has a certain physical blocking effect, which can effectively prevent vehicles from continuing to drive into the dangerous area, realizing mandatory traffic control and avoiding the occurrence of secondary accidents. The linear or planar structure of the laser fence has higher recognition compared to a single laser beam or flashing light, and is more easily recognized and understood by the driver as a road closure or danger warning signal.

[0053] In one embodiment, specifically, the arrangement length range of several laser emitters 1 covers the length of the target road section, and the arrangement length range of the laser emitters 1 extends a certain distance beyond the front end and the rear end of the target road section. In this structure, the arrangement length range of several said laser emitters 1 is used to cover the length of the target road section, which means that the length of the laser emitter array should at least cover the entire target road section that needs to be warned, ensuring that any position of the target road section can be covered by the laser warning signal, and extends a certain distance beyond the front end and the rear end of the target road section respectively, indicating that the length of the laser emitter array not only covers the target road section, but also extends beyond the boundaries of the target road section in the front and rear directions. This extended setting can provide earlier warnings and more comprehensive protection. Its technical purpose is to provide a more comprehensive warning coverage range by making the length of the laser emitter array extend beyond the front and rear ends of the target road section, achieve earlier warnings and more thorough protection, and prevent vehicles from straying into or staying in dangerous areas. It can be understood that the laser emitter array covers the entire target road section, ensuring that any position of the target road section can be effectively covered by the laser warning signal, avoiding warning blind spots. The laser warning that extends beyond the target road section at the front end can warn rescue vehicles that are about to enter the dangerous area from the opposite direction in advance, and the laser warning that extends beyond the target road section at the rear end can warn social vehicles that are about to enter the dangerous area in advance, providing drivers with a longer reaction time and a safer braking distance, reducing the accident risk, and improving the safety of traffic control.

[0054] In one embodiment, specifically, each laser emitter 1 is respectively provided with a plurality of light output ports, and the light output ports are arranged vertically to expand the height range of the laser fence on the road. In this structure, each of the laser emitters 1 is provided with a plurality of light output ports, which means that each laser emitter does not have only one laser emission point, but has a plurality of laser beam emission ports. The light output ports are arranged vertically to expand the height range of the laser fence on the road, indicating that the plurality of light output ports are arranged in the vertical direction, so that each laser emitter can emit multiple laser beams distributed in the vertical direction. When a plurality of laser emitters are arranged in pairs to form a laser fence, the vertically arranged light output ports can act together to expand the vertical height of the laser fence on the road, forming a higher and more prominent visual barrier. Therefore, this structure aims to expand the vertical height of the laser fence by arranging a plurality of vertically arranged light output ports on the laser emitter, improve the visibility and effectiveness of laser warning, especially for vehicles of different heights, and ensure that the warning signal can be effectively recognized. It can be understood that the vertically arranged light output ports can expand the vertical height of the laser fence, so that the laser warning signal covers a larger range in the vertical direction, improves the visibility for vehicles of different heights (such as cars, trucks, buses, etc.), and ensures that drivers of various types of vehicles can effectively receive the warning signal. A taller laser fence is more visually impactful and easier to attract the attention of drivers, improving the warning effect. When there are complex terrains such as longitudinal slopes or curves on the road, a taller laser fence can better adapt to terrain changes, maintain the effectiveness and visibility of the warning signal, and avoid the decline of the warning effect caused by terrain occlusion.

[0055] In one embodiment, specifically, the beam of the laser emitter 1 is a red laser, and the intensity of the beam of the laser emitter 1 is adjustable. It can be understood that the red laser has a longer wavelength and has better penetration in the visible spectrum. Especially in bad weather conditions such as haze, rain and snow, compared with other color lasers, the red laser has less scattering, can travel a longer distance, and is easier to be observed by drivers. The function of adjustable beam intensity enables the laser beam to ensure visibility by enhancing the intensity in bad weather such as at night, in thick fog, and on rainy days, and can appropriately reduce the intensity in normal weather to avoid visual interference to drivers. Therefore, this technical solution effectively improves the warning effect of the laser warning system in different environments and reduces the accident risk.

[0056] In one embodiment, specifically, the number of the directional sound columns 2 is several and they are used to be distributed on the opposite sides of the road. The sound outlets of the directional sound columns 2 are used to face the oncoming vehicle direction on the road. In this structure, the directional sound columns 2 are installed on both sides of the road and work together with the laser emitter 1 to jointly form a laser alarm. When the control system triggers the laser alarm to work, the directional sound columns 2 start to play warning sounds. Since the directional sound columns 2 are distributed on both sides of the road and the sound outlets face the oncoming vehicle direction, the warning sounds can be concentrated and directionally transmitted to the approaching vehicles, improving the warning effect. That is, by setting multiple directional sound columns 2 and making their sound outlets face the oncoming vehicle direction, it is ensured that the warning sounds can be clearly and accurately transmitted to the drivers on the target section, improving the effectiveness and pertinence of the sound warning. It can be understood that the arrangement method of the directional sound columns 2 can expand the coverage range of the sound warning, ensuring that the vehicles on both sides of the road can receive the warning information. The characteristic of the directional sound column 2 is that its sound propagation has directionality. Making the sound outlet face the oncoming vehicle direction can make the sound energy concentrate in the vehicle driving direction, reducing the diffusion of the sound to the surrounding environment, improving the sound propagation efficiency and clarity, and ensuring that the driver can clearly hear the warning information. The directional sound column 2 works together with the laser emitter 1 to form an acoustic-optical integrated warning system. The combination of the sound warning and the visual warning can further enhance the warning effect and improve the driver's alertness.

[0057] In one embodiment, specifically, a certain included angle is formed between the sound outlet direction of the directional sound column 2 and the oncoming vehicle direction on the road. In this structure, by setting a certain included angle, the sound propagation direction can be made more in line with the actual situation, avoiding the sound directly facing the driver, reducing the reflection and interference of the sound, improving the clarity and propagation distance of the sound. The appropriate included angle can make the sound spread within a certain range, expanding the coverage range of the sound, ensuring that the drivers in different positions can hear the warning sounds, optimizing the combination of sound propagation and expanding the sound coverage range, being able to improve the effectiveness and clarity of the warning sounds, thereby improving the driver's acceptance of the warning information and enhancing the warning effect. By setting the included angle, the blind area of sound propagation can be reduced, ensuring that the drivers in different positions can hear the warning sounds and improving the comprehensiveness of the warning.

[0058] In one embodiment, specifically, the played sound of the directional sound column 2 includes voice broadcast. The voice broadcast can directly transmit text information to the driver, such as the accident type, danger level, response measures, etc., enabling the driver to more accurately understand the situation and take corresponding actions. The voice broadcast has more information than a simple warning sound, can more effectively attract the driver's attention, and improve the warning effect. The voice broadcast can avoid the driver's misunderstanding of the warning information, ensure that the driver can correctly understand the warning content and take the correct response measures, and the clear warning information can help the driver take measures in time to avoid the occurrence of accidents and improve the safety of road traffic.

[0059] In one embodiment, specifically, each monitoring signal line is connected in parallel to the controller. A part of the monitoring signal lines is used to be parallel to the length direction of the target road section, and a part of the monitoring signal lines is used to be parallel to the width direction of the target road section. In this structure, part of the monitoring signal lines are arranged along the length direction of the road, and part of the monitoring signal lines are arranged along the width direction of the road, forming a grid-shaped monitoring network. When an abnormal signal is detected by a certain section of the monitoring signal lines, since all the monitoring signal lines are connected in parallel to the controller, the controller can immediately receive the abnormal signal and trigger the laser alarm to work. At the same time, through the combination of the monitoring signal lines in different directions, the location and scope of the disaster occurrence can be judged more accurately. That is, by connecting the monitoring signal lines in parallel and arranging them in a grid shape, the comprehensive and accurate monitoring of the target road section is realized, the reliability and sensitivity of the monitoring system are improved, and the location and scope of the disaster occurrence can be judged more accurately. It can be understood that in the case of parallel connection, even if a certain monitoring signal line fails, it will not affect the normal operation of other monitoring signal lines, improving the reliability and fault tolerance of the system. The monitoring signal lines arranged along the length direction of the target road section can monitor the road surface conditions at different positions on the road section, realizing the longitudinal monitoring of the entire road section. The monitoring signal lines arranged along the width direction of the target road section can monitor the road surface conditions of different lanes on the road section, realizing the transverse monitoring of the entire road section. The monitoring signal lines in the length direction and the width direction intersect with each other, forming a grid-shaped monitoring network, which can more accurately locate the location and scope of the disaster occurrence, such as judging which lane of the road surface has collapsed.

[0060] In one embodiment, specifically, one or more of an optical fiber sensor, a grating sensor, a vibrating wire sensor, a cable sensor, a pressure sensor, and a deformation sensor are mounted on the monitoring signal line. It can be understood that different types of sensors have different detection principles and functions. For example, an optical fiber sensor can detect minute deformations through changes in optical signals, and a pressure sensor can sense changes in road surface pressure. These sensors, combined with the monitoring signal line, convert physical changes on the road surface into transmittable signals such as electrical signals or optical signals, and transmit them to the controller through the monitoring signal line. When disasters such as road collapses or deformations occur on the road surface, the corresponding sensors will sense the changes in physical quantities and convert them into signal changes. For example, a deformation sensor senses the tensile or compressive deformation of the road surface and converts it into an electrical signal change, which is transmitted to the controller through the monitoring signal line. The controller determines the road surface condition based on the received signal changes and then triggers the laser alarm. By mounting multiple sensors on the monitoring signal line, the perception ability of the monitoring device for different types of road disasters is enhanced, the detection sensitivity and accuracy of the laser warning system are improved. Different types of sensors can accurately detect different physical changes on the road surface, enabling the monitoring device to more comprehensively and meticulously perceive the road surface condition. This greatly improves the detection ability of the laser warning system for various disaster hazards, can detect and give warnings in a timely manner at the initial stage of disasters, and effectively reduces the possibility of accidents.

[0061] In one embodiment, specifically, the laser emitter 1 and the directional sound column 2 are respectively adapted to be fixedly connected to the outer guardrail of the road. The purpose is to facilitate installation and maintenance and improve the stability of the system by fixing the laser emitter and the directional sound column on the outer guardrail of the road. That is to say, by fixing the laser emitter 1 and the directional sound column 2 on the outer guardrail of the road, existing road facilities can be utilized, the installation process can be simplified, the installation cost can be reduced, and it is easy to maintain and repair, which is convenient for daily management. It can also improve the stability of the system, avoid equipment displacement or damage caused by vibration or external forces, save space on the road surface, avoid occupying road resources, and is conducive to avoiding interference with vehicle driving by the equipment, thereby improving the safety of road traffic.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. However, such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser warning system for post-disaster emergency traffic control on highways, characterized in that, Including: A monitoring device, configured to be set on a road to monitor a target section in real time and output a monitoring signal; A controller, electrically connected to the monitoring device and receiving the monitoring signal of the monitoring device; a laser alarm, configured to be set on the road and electrically connected to the controller; Wherein, the controller triggers the laser alarm to emit a warning signal to the target section according to the change of the monitoring signal of the monitoring device.

2. The laser warning system for post-disaster emergency traffic control on highways according to claim 1, characterized in that The monitoring device includes: A monitoring signal line, configured to be set on the target section and relatively fixed to the road surface or laid on the road surface or buried inside the target section; Wherein, the controller triggers the laser alarm to emit a laser warning signal to the target section according to the change monitoring signal exceeding a preset threshold generated by the monitoring signal line being torn or damaged by a collapsed section.

3. The laser warning system for post-disaster emergency traffic control on highways according to claim 2, wherein The number of the monitoring signal lines is several, and at least two of the monitoring signal lines are distributed on opposite sides of the target section.

4. The laser warning system for highway post-disaster emergency traffic control according to claim 1, characterized in that The laser alarm includes: A laser emitter (1), configured to be set on both sides of the target section and emit warning laser on the road; A directional sound column (2), configured to be set on at least one side of the target section and emit warning sounds on the road; Wherein, the laser emitter (1) and the directional sound column (2) are both electrically connected to the controller to trigger the laser emitter (1) and the directional sound column (2) together through the controller.

5. The laser warning system for highway post-disaster emergency traffic control according to claim 4, characterized in that, The number of the laser emitters (1) is several, and each of the laser emitters (1) is arranged and distributed along the length direction of the target section.

6. The laser warning system for post-disaster emergency traffic control on highways according to claim 5, characterized in that, The laser emitters (1) are distributed in pairs on opposite sides of the target section to form a laser fence by shooting at each other in the width direction of the road.

7. The laser warning system for highway post-disaster emergency traffic control according to claim 5, characterized in that, The arrangement length range of several of the laser emitters (1) is used to cover the length of the target section and respectively extend a certain distance beyond the front end and the rear end of the target section.

8. The laser warning system for post-disaster emergency traffic control on highways according to any one of claims 5 to 7, characterized in that, Each of the laser emitters (1) is respectively provided with a plurality of light outlets, and the light outlets are arranged vertically to expand the height range of the laser fence on the road.

9. The laser warning system for post-disaster emergency traffic control on highways according to any one of claims 5 to 7, characterized in that, The light beam of the laser emitter (1) is a red laser, and the intensity of the light beam of the laser emitter (1) is adjustable to cope with the road conditions in complex weather.

10. The laser warning system for highway post-disaster emergency traffic control according to claim 4, wherein The number of the directional sound columns (2) is several and they are used to be distributed on opposite sides of the road; the sound broadcast openings of the directional sound columns (2) are oriented towards the oncoming vehicle direction on the road.

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