Highway automatic safety warning system and method for preventing secondary accidents

Abstract

The application relates to the technical field of highway emergency rescue, and particularly discloses a highway automatic safety warning system and method for preventing secondary accidents, which can issue flashing warning and intelligent stud warning signals through guardrails at the front and rear of a position where a collision event occurs after detecting that a vehicle collides with a guardrail, the intelligent studs behind the position where the collision event occurs receive the intelligent stud warning signals, the intelligent studs flash, and the flashing of the intelligent studs reminds the rear vehicles; the flashing warning controls a monitoring camera near the position where the collision event occurs to monitor the position in real time, and the collision event is published to remind people, so that safety guidance is realized. The application realizes linkage warning by controlling the monitoring of the guardrails, the intelligent studs and the monitoring camera; the flashing of the guardrails and the intelligent studs forms a light belt with a direction, and the light belt guides the road after the collision event, so that secondary accidents are prevented.

Description

Technical Field

[0001] This invention belongs to the field of road traffic technology, and specifically relates to an automatic safety early warning system and method for preventing secondary accidents on highways. Background Technology

[0002] With the increase in road traffic, secondary accidents can easily occur due to improper handling of the initial accident. The discovery, handling, and rescue efforts after an initial accident require time. During this period, inadequate traffic management significantly increases the risk of secondary accidents. Chain collisions and rear-end collisions are the most likely problems to occur under these conditions. Given the current safety situation on highways, the prevention and control capabilities of highway safety work need to be further improved to reduce the frequency of major accidents. Therefore, an automatic safety early warning system and method for preventing secondary accidents on highways are needed. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic safety early warning system and method for highways to prevent secondary accidents, thereby overcoming the current shortcomings of highways in that there is no more convenient way to pre-prevent secondary accidents.

[0004] Therefore, one aspect of the present invention is to propose an automatic safety early warning method for highways to prevent secondary accidents.

[0005] Another aspect of the present invention is to provide an automatic safety early warning system for highways to prevent secondary accidents.

[0006] In view of this, the present invention proposes an automatic safety early warning method for highways to prevent secondary accidents, comprising:

[0007] After a vehicle is detected to have collided with the guardrail, the guardrail guards at the front and rear ends of the location of the collision will flash as a warning.

[0008] The smart road stud issues a warning signal based on the flashing warning signal. The smart road stud behind the location of the collision receives the warning signal and flashes to alert vehicles behind.

[0009] The flashing warning system controls nearby surveillance cameras to monitor the location of the collision in real time and issues alerts to the collision to provide safety guidance.

[0010] In the above technical solution, preferably, it further includes: setting up a monitoring smart road stud at a certain distance behind the location of the collision event in the direction of travel to perform real-time pressure monitoring; when the monitoring smart road stud detects pressure, it indicates that a vehicle is about to pass the location of the collision event; the smart road stud between the monitoring smart road stud and the location of the collision event changes from low-frequency flashing to high-frequency flashing to provide a secondary warning to passing vehicles and prevent accidents from occurring.

[0011] In the above technical solution, preferably, the smart road studs between the monitored smart road studs and the location where the collision event occurred are calculated by a matching algorithm. The expression of the matching algorithm is: n = L / d, where L is the set monitoring distance, d is the distance between two adjacent road studs, and n is the number of smart road studs between the monitored smart road studs and the location where the collision event occurred.

[0012] In the above technical solution, preferably, the smart road stud includes four light strips that can flash in four directions: front, back, left, and right. Two rows of smart road studs are set on the road near the guardrail on both sides, and the light strips of the two rows of smart road studs flash to provide guidance.

[0013] In the above technical solution, preferably, the color or frequency of the light strips in the four directions of the smart road studs of the corresponding lane is changed according to the lane involved in the collision event obtained from the flashing warning signal, so as to form a light strip for reminding that passage is prohibited between the lane where the collision event occurred and the lane reserved to prevent secondary accidents.

[0014] In the above technical solution, preferably, the collision event is published at the road information disclosure office in the location where the collision event occurred.

[0015] Preferably, the above technical solution further includes: digitally collecting and storing the location of the collision event and related data from guardrails, smart road studs, video surveillance, and safety guidance, and rendering them onto a map for display.

[0016] This invention also proposes an automatic safety early warning system for highways to prevent secondary accidents, comprising:

[0017] The guardrail collision monitoring module is used to detect when a vehicle collides with the guardrail, and to issue a flashing warning to the guardrail guards at the front and rear ends of the collision event location. Based on the flashing warning signal, it issues a warning signal to make the smart lane behind the collision event location flash, transmits collision event-related data, and receives remote control.

[0018] The smart road stud flashes upon receiving the warning signal.

[0019] The road operation management module is used to receive signals from the guardrail collision monitoring module and the smart road stud, and to organize the received collision event-related data, issue traffic guidance reminder signals, and at the same time control the monitoring cameras near the location of the collision event to monitor the location of the collision event in real time.

[0020] A safety guidance module, configured to publish the collision event based on the traffic guidance signal; and

[0021] The video surveillance module is used to monitor the corresponding road based on the real-time monitoring signal and can push the monitoring video stream.

[0022] In the above technical solution, preferably, the smart road stud also includes: the ability to be charged by solar energy; the ability to monitor pressure from the outside and transmit the monitored data to the main control unit and / or cloud server.

[0023] In the above technical solution, preferably, the road operation management module is also used to digitally collect and store the latitude and longitude coordinates of the installation locations of guardrail guardians, smart road studs, video surveillance modules, and safety guidance modules, and render them onto a map for display. When multiple devices work together, the module can output relevant operation information to the digital map on the monitoring screen for convenient unified monitoring and management.

[0024] Compared with existing technologies, the present invention has the following advantages:

[0025] 1. The automatic safety early warning system and method for preventing secondary accidents on highways of the present invention, after detecting a vehicle collision with the guardrail, the guardrail guards at both ends of the collision site emit flashing warning signals; based on the flashing warning signals, a smart road stud warning signal is emitted, and the smart road stud behind the collision site receives the smart road stud warning signal and flashes, thus alerting vehicles behind; based on the flashing warning signals, a monitoring camera near the collision site is controlled to monitor the collision site in real time, and simultaneously, a warning about the collision is issued, thereby providing safety guidance. By controlling the monitoring of the guardrail guards, smart road studs, and monitoring cameras, a coordinated early warning system is achieved; moreover, the flashing of the guardrail guards and smart road studs forms a directional light strip, guiding the road after the collision, thereby preventing secondary accidents.

[0026] 2. In this invention, a smart road stud is installed at a certain distance behind the location of the collision event in the direction of travel to perform real-time pressure monitoring. When the smart road stud detects pressure, it indicates that a vehicle is about to pass the location of the collision event. The smart road stud between the monitoring smart road stud and the location of the collision event changes from low-frequency flashing to high-frequency flashing to provide a secondary warning to the approaching vehicle to prevent accidents. It can change the warning flashing frequency in real time according to the driving behavior of the vehicle heading towards the accident location after the accident, so as to achieve the purpose of efficient protection. Attached Figure Description

[0027] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only one embodiment of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a flowchart illustrating an embodiment of the automatic safety early warning method for highways to prevent secondary accidents according to the present invention.

[0029] Figure 2 This is a flowchart illustrating the flashing motion of a smart road stud according to a specific embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram illustrating the flashing principle of a smart road stud according to a specific embodiment of the present invention.

[0031] Figure 4 This is a schematic diagram of the flashing light strip of a smart road stud according to a specific embodiment of the present invention;

[0032] Figure 5 This is a schematic block diagram of an automatic safety early warning system for highways to prevent secondary accidents, according to an embodiment of the present invention.

[0033] Figure 6 This is a schematic diagram of the structure of an automatic safety warning system for highways installed on roads, according to an embodiment of the present invention.

[0034] Figure 7 This is a schematic diagram of a smart road stud with LED strip lighting, according to an embodiment of the present invention. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "top surface," "bottom surface," "inner," "outer," "inner side," and "outer side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. Where the terms "first," "second," and "third" are used for descriptive purposes and to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The embodiments of this invention will now be described according to its overall structure.

[0039] like Figure 1 The diagram shows a flowchart of an automatic safety warning method for highways to prevent secondary accidents according to an embodiment of the present invention. The automatic safety warning method for highways includes:

[0040] Step 10: After a vehicle collision with the guardrail is detected, the guardrail guards at the front and rear ends of the location where the collision occurred will flash as a warning.

[0041] Step 20: Based on the flashing warning signal, a smart road stud warning signal is issued. The smart road stud behind the location of the collision receives the smart road stud warning signal and flashes to remind the vehicles behind.

[0042] Step 30: Based on the flashing warning, control the surveillance cameras near the location of the collision event to monitor the location of the collision event in real time, and at the same time, issue a reminder about the collision event to provide safety guidance.

[0043] In the above embodiments, the monitoring of guardrail guards, smart road studs, and surveillance cameras is controlled to achieve joint early warning; moreover, the flashing of guardrail guards and smart road studs forms a directional light strip to guide the road after a collision event, thereby preventing secondary accidents from occurring.

[0044] In one embodiment of the present invention, such as Figure 2 As shown, the automatic safety warning method for highways to prevent secondary accidents also includes: step 40, setting up a monitoring smart road stud at a certain distance behind the location of the collision event in the direction of travel to perform real-time pressure monitoring. When the monitoring smart road stud detects pressure, it indicates that a vehicle is about to pass the location of the collision event. The smart road stud between the monitoring smart road stud and the location of the collision event changes from low-frequency flashing to high-frequency flashing to provide a secondary warning to the approaching vehicle to prevent the accident from occurring.

[0045] In the above embodiments, the specific distance behind the location of the collision event in the driving direction is no less than 200 meters, which can be configured and set by the road operation management module, such as setting it to the location of the upstream camera for convenient monitoring.

[0046] In the above embodiment, the number of smart road studs between the monitored smart road studs and the location where the collision event occurred is calculated by a matching algorithm. The expression of the matching algorithm is: n = L / d, where L is the set monitoring distance, d is the distance between two adjacent road studs, and n is the number of smart road studs between the monitored smart road studs and the location where the collision event occurred.

[0047] In the above embodiment, smart road studs are managed in binary sequence form. Each smart road stud has two states, 0 and 1, where 0 is the no-warning state and 1 is the warning state. The use of two states, 0 and 1, is to manage the road studs installed in strips on the road based on binary. A single Int integer type can manage 32 road studs, which greatly saves system resources.

[0048] When a smart road stud is in warning state 1, when its state changes from 1 back to 0, the main control unit detects the state of adjacent smart road studs. If the adjacent smart road studs are in state 1, the smart road studs in the forward direction of the warning road stud become high-frequency. After a collision, the state of n smart road studs behind the collision point in the direction of travel becomes 1 in the main control unit. Among these n road studs, when a smart road stud senses pressure, it sends a pressure event signal to the main control unit, that is, the smart road stud changes from 1 back to 0. The main control unit detects the state of adjacent road studs (smart road studs on the same side). If the adjacent road studs are in state 1, the smart road studs from that road stud to the location of the incident become high-frequency flashing. The smart road studs that change from 1 back to 0 return to state 1 after the vehicle passes, until the smart road studs in state 1 return to state 0 after the vehicle leaves the location of the incident. Using two states, 0 and 1, is for binary-based management of the strip-installed road studs. A single Int integer type can manage 32 road studs, greatly saving system resources.

[0049] In one embodiment of the present invention, the automatic safety warning method for highways to prevent secondary accidents further includes: step 50, digitally collecting and storing the location of the collision event and related data from guardrails, smart road studs, video surveillance, and safety guidance, and rendering them onto a map for display.

[0050] Specifically, the relevant data includes: the latitude and longitude coordinates of the installation locations of guardrail protectors, smart road studs, surveillance videos, and safety guidance systems.

[0051] In any of the above embodiments, preferably, in step 10, the guardrail guards within a set range before and after the location of the collision event flash a warning. Specifically, the guardrail guards within 1-3 kilometers before and after the location of the collision event may flash. Preferably, the guardrail guards within 1 kilometer before and after the location of the collision event flash to remind passing vehicles, thus acting as a buffer and reducing the risk of secondary accidents caused by drivers not being notified and thus not paying attention; it also reminds passing vehicles that they have not left the area related to the collision event.

[0052] In any of the above embodiments, such as Figure 3 As shown, the flashing switching conditions of the smart road stud are as follows: when there is no collision, it is in the "no flashing" state; after a collision, it becomes the "low-frequency flashing" warning state with a frequency of 1 time / second; when the flashing smart road stud detects pressure, the smart road stud from the detected smart road stud to the collision point becomes the "high-frequency flashing" warning state with a frequency of 2 times / second.

[0053] like Figure 4As shown, the smart road stud includes four light strips that can flash in four directions: front, back, left, and right. Two rows of smart road studs are installed on the roads on both sides near the guardrail, and the flashing light strips of the two rows of smart road studs provide guidance.

[0054] The guidance includes: based on the flashing warning signal, obtaining the lane involved in the location of the collision event, changing the color or frequency of the light strips in the four directions of the smart road studs in the corresponding lane, and forming a light strip between the lane where the collision event occurred and the lane reserved to prevent secondary accidents to remind people not to pass.

[0055] Specifically, after receiving an alarm notification from the guardrail collision monitoring module, the smart road stud can project red light strips in several directions from the four light strips controlled by the module. This forms a U-shape around the location of the collision and the reserved safety area, enclosing the space. The flashing red light strips serve as a warning, reminding drivers not to enter the area covered by the red light strips. Figure 7 As shown, the direction of travel on the road is indicated by the arrow. The front of the smart road stud represents the forward direction of the road, and the rear of the smart road stud represents the reverse direction of travel. The two parallel rows of road studs are the left and right road studs, respectively. When a collision event is detected with the right-side guardrail, the smart road studs behind the collision event receive an alarm notification. Specifically, the right-side and rear light strips of the smart road stud closest to the collision event on the right side change from off to red (this is the daytime state; at night, the light strips change from white to red). The smart road stud closest to the collision event and... The front and rear light strips of the smart road stud on the right side between the monitoring smart road studs change from being off to red (this is the daytime state; at night, the light strips change from white to red). A U-shaped light strip is formed by the right and rear light strips of the smart road stud closest to the collision event, the front and rear light strips of the smart road stud between the closest collision event and the monitoring smart road stud, and the right and front light strips of the monitoring smart road stud. This light strip flashes red to indicate no-entry, allowing drivers who see the U-shaped light strip to change lanes, reducing the occurrence of secondary accidents.

[0056] In any of the above embodiments, preferably, in step 30, the collision event is published at the road information disclosure point at the location where the collision event occurred, wherein the road information disclosure point includes an upstream information board or a broadcast.

[0057] In any of the above embodiments, preferably, the surveillance camera near the location where the collision event occurred is the surveillance camera closest to the location in the opposite direction of the collision point.

[0058] Surveillance cameras near the location of the collision can be controlled by the cloud to rotate their lenses and change their focal length, and can push real-time monitoring video streams as needed.

[0059] like Figure 5 The diagram shown is a schematic block diagram of an automatic safety warning system for highways to prevent secondary accidents according to an embodiment of the present invention. The automatic safety warning system includes: a guardrail collision monitoring module, smart road studs, a road operation management module, a safety guidance module, and a video surveillance module.

[0060] The guardrail collision monitoring module is used to detect when a vehicle collides with the guardrail. The guardrail guards at the front and rear ends of the collision location issue a flashing warning. Based on the flashing warning signal, it issues a warning signal to make the smart lane behind the collision location flash. It also transmits the collision event-related data and receives remote control.

[0061] The smart road stud receives the warning signal from the guardrail collision monitoring module and flashes to remind the approaching vehicle;

[0062] The road operation management module is used to receive signals from the guardrail collision monitoring module and smart road studs, and will organize the relevant data of the received collision events, issue traffic guidance reminder signals, and at the same time control the nearest monitoring camera in the opposite direction of the collision event location to conduct real-time monitoring signals of the collision event location;

[0063] The safety guidance module is used to publish collision events based on traffic guidance signals;

[0064] The video surveillance module is used to monitor the corresponding roads based on real-time monitoring signals and can push monitoring video streams.

[0065] The automatic safety early warning system for highways to prevent secondary accidents provided in this embodiment of the invention detects a vehicle collision with the guardrail through a guardrail collision monitoring module. The guardrail guards at both ends of the collision site issue flashing warnings, and based on these flashing warnings, a warning signal is issued to the smart road behind the collision site, causing it to flash. The system also transmits collision-related data and receives remote control signals. The smart road studs receive the warning signals from the guardrail collision monitoring module and flash accordingly. The road operation management module receives signals from the guardrail collision monitoring module and the smart road studs, processes the received collision-related data, issues traffic guidance warning signals, and controls nearby surveillance cameras to monitor the collision site in real time. The safety guidance module publishes the collision event information based on the traffic guidance signals, thereby preventing secondary accidents. The video surveillance module monitors the corresponding road based on the real-time monitoring signals and can push monitoring video streams, allowing remote monitoring personnel to monitor the accident site in real time.

[0066] In one embodiment of the present invention, preferably, the guardrail collision monitoring module controls guardrail guards within a set range before and after the location of the collision event to issue flashing warnings. Specifically, guardrail guards within 1-3 kilometers before and after the location of the collision event may flash. Preferably, guardrail guards within 1 kilometer before and after the location of the collision event flash to remind passing vehicles, thus buffering the incident and reducing the risk of secondary accidents caused by drivers not being notified and thus failing to notice; it also reminds passing vehicles that they have not left the area related to the collision event.

[0067] In one embodiment of the present invention, preferably, the smart road stud further includes: the ability to be charged by solar energy; the ability to monitor pressure from the outside and transmit the monitored data to the main control unit and / or cloud server.

[0068] In any of the above embodiments, such as Figure 3 As shown, the flashing switching conditions of the smart road stud are as follows: when there is no collision, it is in the "no flashing" state; after a collision, it becomes the "low-frequency flashing" warning state with a frequency of 2 seconds / time; when the flashing smart road stud detects pressure, the smart road stud from the detected smart road stud to the collision point becomes the "high-frequency flashing" warning state with a frequency of 2 seconds / time.

[0069] like Figure 4 As shown, the smart road stud includes four light strips that can flash in four directions (front, back, left, and right) to provide guidance.

[0070] The guidance includes: based on the flashing warning signal, determining the lane involved in the collision incident, and changing the color or frequency of the light strips in the four directions of the smart road studs in the corresponding lane to create route reminders.

[0071] In one embodiment of the present invention, preferably, the road operation management module is also used for new management of alarm information of the smart road studs of the guardrail guardian.

[0072] Specifically, the road operation management module is also used to digitally collect and store the latitude and longitude coordinates of the installation locations of guardrails, smart road studs, video surveillance modules, and safety guidance modules, and render them onto a map for display. When multiple devices work together, the module can output relevant operation information to the digital map on the monitoring screen for convenient unified monitoring and management.

[0073] In one embodiment of the present invention, preferably, the road operation management module is further used to control the setting of a monitoring smart road stud at a certain distance behind the location of the collision event for real-time pressure monitoring. When the monitoring smart road stud detects pressure, it indicates that a vehicle is about to pass the location of the collision event. The smart road stud between the monitoring smart road stud and the location of the collision event changes from low-frequency flashing to high-frequency flashing to provide a secondary warning to the approaching vehicle to prevent the accident from occurring.

[0074] In the above embodiments, the specific distance behind the location of the collision event in the driving direction is no less than 200 meters, which can be configured and set by the road operation management module, such as setting it to the location of the upstream camera for convenient monitoring.

[0075] In the above embodiment, a matching algorithm is used to calculate the number of smart road studs between the monitored smart road studs and the location of the collision event. The expression for the matching algorithm is: n = L / d, where L is the set monitoring distance, d is the distance between two adjacent road studs, and n is the number of smart road studs between the monitored smart road studs and the location of the collision event. In the above embodiment, the smart road studs are managed in binary sequence form. Each smart road stud has two states, 0 and 1, where 0 is the no-warning state and 1 is the warning state. Using two states, 0 and 1, is to manage the strip-installed road studs on the road based on binary. A single Int integer type can manage 32 road studs, greatly saving system resources.

[0076] When a smart road stud is in warning state 1, when its state changes from 1 back to 0, the main control unit detects the state of adjacent smart road studs. If the adjacent smart road studs are in state 1, the smart road studs in the forward direction of the warning stud become high-frequency. After a collision, the state of n smart road studs behind the collision point in the direction of travel becomes 1 in the main control unit. Among these n road studs, when a smart road stud senses pressure, it sends a pressure event signal to the main control unit, causing it to change from 1 back to 0. The main control unit then detects the state of adjacent road studs (smart road studs on the same side). If the adjacent road studs are in state 1, the smart road studs from that point to the location of the incident become high-frequency flashing. Smart road studs that change from 1 back to 0 return to state 1 after the vehicle passes, until the smart road studs in state 1 return to state 0 after the vehicle leaves the incident location. Using two states, 0 and 1, is for binary-based management of strip-installed road studs. A single integer type can manage 32 road studs, greatly saving system resources.

[0077] Next, the working principle of an embodiment of the automatic safety early warning system for highways to prevent secondary accidents will be described in detail so that those skilled in the art can better understand the present invention:

[0078] like Figure 6 As shown, the highway automatic safety early warning system for secondary accidents includes: a guardrail collision monitoring module, smart road studs, a road operation management module, a safety guidance module, and a video surveillance module.

[0079] The guardrail collision monitoring module includes a guardrail protector installed on the highway guardrail. The guardrail protector, with its built-in vibration sensor, can monitor guardrail collision events. It only needs to be fixed to the guardrail posts with a bracket, making deployment simple, requiring no network or power connection, and no large mechanical assistance. The guardrail protector, installed on the highway guardrail, interfaces with the smart road stud module via the Zigbee self-organizing network protocol, enabling communication and coordinated operations. It also interfaces with the road operation management module, providing services including receiving instructions from the road operation management module and reporting collision alarm events to it. The functions of the guardrail collision monitoring module include: collision detection, flashing alarms, notifying the main control unit of the smart road stud module to trigger alarms, and event reporting.

[0080] 1) Collision Detection: The guardrail has a built-in vibration sensor that can detect guardrail collision events;

[0081] 2) Flashing alarm: After a vehicle collision, the guardrail collision monitoring module can trigger a flashing alarm within 1 kilometer before and after the collision.

[0082] 3) Notify the main control unit of the smart road stud module to trigger an alarm: When a collision occurs, notify smart road studs within a certain distance before and after (the notification distance can be configured, such as notifying 1 kilometer before and after) to issue an alarm, including the flashing smart road stud ID, flashing time, light strip direction (1 is the forward direction), and other information.

[0083] 4) Incident Reporting: Able to report collision incidents to the road operation management module;

[0084] 5) It can be charged by solar energy.

[0085] Continue to refer to Figure 6 The smart road stud module consists of road studs covering the highway surface and a main control unit connected to the road studs. Two rows of parallel road studs are installed on a highway. The main control unit is mounted on a road monitoring camera support frame. Each main control unit is responsible for managing the smart road studs on that side of the road. The main control unit interfaces with the guardrail collision monitoring module via the Zigbee self-organizing network protocol and can receive instructions from the guardrail collision monitoring module. The functions of the smart road stud module include:

[0086] 1) Alarm flashing: After receiving an alarm notification from the guardrail collision monitoring module, it can flash an alarm.

[0087] 2) Displaying alarm light strips: After receiving an alarm notification from the guardrail collision monitoring module, the smart road stud can display red light strips in certain directions of the four controlled light strips to serve as a warning, such as... Figure 7 As shown;

[0088] In addition, if the received instruction is ID001 flashing red light at a frequency of 2 times / second, with the light strip direction 23; or ID002 flashing red light, with the light strip direction 13, then... Figure 7 As shown;

[0089] 3) Receive instructions from the guardrail collision monitoring module;

[0090] 4) Capable of solar charging;

[0091] 5) Pressure monitoring: After a collision, the road studs with low-frequency flashing alarms perform real-time pressure monitoring, which can detect external pressure (such as tires) and send the event to the main control unit.

[0092] 6) Alarm Flashing Upgrade: After receiving a pressure alarm from a smart road stud, the main control unit can send a flashing upgrade command to all road studs from the alarm stud to the accident site, increasing the flashing frequency to enhance early warning capabilities. Specifically, the main control unit manages the road studs in a binary sequence format, with each smart road stud possessing two states: 0 and 1, as shown in the road diagram. Figure 6If there are 7 smart road studs on each side, then when no accident occurs, their stored state in the main control unit is 0000000. Figure 7 If the accident occurs near the fifth smart road stud, its warning status will be 1111100. When a vehicle runs over the first smart road stud, it sends a run-over event to the main control unit to warn of a vehicle entering. At this time, the main control unit will send a high-frequency flashing command to the first to fifth smart road studs to increase the flashing frequency and enhance the warning capability.

[0093] Further reference Figure 7 The safety guidance module includes information boards deployed on highways. These information boards interface with the road operation management module and can receive and publish information from the road operation management module, serving as traffic reminders and guidance.

[0094] The video surveillance module includes video surveillance cameras on the highway. All video surveillance cameras interface with the road operation and management module. The functions of the video surveillance module include:

[0095] 1) Gimbal rotation control: It can receive gimbal control from the road operation management module to rotate and focus / zoom;

[0096] 2) Video media streaming: Push real-time monitoring video streams according to the needs of the road operation management module;

[0097] 3) Periodically report the camera status to the road operation management module, including: normal, cloud control abnormal, monitoring screen abnormal, etc.

[0098] Further reference Figure 7 The road operation management module can be a method, apparatus, or computer program product. For example, a road operation management module computer program product stored on a cloud server, whose functions within the system include:

[0099] 1) Automatic cloud control for video surveillance in response to collision events: Based on the collision location reported by the guardrail collision monitoring module, it can select a suitable nearby camera, calculate the camera cloud control path for monitoring the collision point, and rotate the camera to monitor the accident location.

[0100] 2) Receive alarm requests from the guardrail collision monitoring module;

[0101] 3) Send an early warning request to the guardrail collision monitoring module, including notifying the guardrail guard to flash an early warning, and notifying the guardrail guard to notify the road studs at a set distance in front of and behind it to flash and light strips to warn.

[0102] 4) Publish traffic alerts and guidance content to the safety guidance module;

[0103] 5) Digital road management: It can digitally collect and store the latitude and longitude coordinates of the installation locations of guardrails, smart road studs, surveillance cameras, and information boards, process and render them onto a map for display. When multiple devices work together, it can output relevant operation information to the digital map on the monitoring screen for convenient unified monitoring and management.

[0104] The highway automatic safety warning system for secondary accidents detects when a vehicle collides with the guardrail. The guardrail collision module detects the collision, and the guardrails in front of and behind the collision site flash as a warning. It also notifies the smart road stud module to flash and illuminate as a warning, and simultaneously reports the collision to the road operation management module. The road operation management module identifies nearby cameras and rotates the monitoring camera cloud control to focus on the accident site for real-time monitoring. Simultaneously, it links to the upstream information board at the accident site and issues guidance messages according to the pre-planned schedule, such as "An accident has occurred ahead, please slow down." When an external vehicle enters and runs over a smart road stud, the smart road stud detects the vehicle pressure and triggers a pressure detection event to the main control unit. The main control unit uses a matching algorithm to calculate the location of the road stud that was run over at the accident site and issues a status change notification, changing the flashing frequency from low to high to provide a secondary warning to the approaching vehicle and prevent further accidents.

[0105] Based on the same inventive concept, another embodiment of this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps in the method described in any of the above embodiments of this application.

[0106] Based on the same inventive concept, another embodiment of this application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the steps of the method described in any of the above embodiments of this application.

[0107] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0108] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, electronic devices, or computer program products. Therefore, embodiments of this application can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of this application can take the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0109] This application describes embodiments with reference to flowchart illustrations and / or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0110] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing terminal device to operate in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0111] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal equipment, causing a series of operational steps to be performed on the computer or other programmable terminal equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable terminal equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0112] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0113] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0114] The above provides a detailed description of a user matching method, apparatus, storage medium, and electronic device provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An automatic safety early warning method for highways to prevent secondary accidents, characterized in that, include: After a vehicle is detected to have collided with the guardrail, the guardrail guards at the front and rear ends of the location of the collision will flash as a warning. A smart road stud warning signal is issued based on the flashing warning signal. The smart road stud behind the collision location receives the warning signal and flashes to alert vehicles behind. Monitoring smart road studs are set up at a certain distance behind the collision location in the direction of travel to perform real-time pressure monitoring. When a monitoring smart road stud detects pressure, it indicates that a vehicle is about to pass the collision location. The smart road studs between the monitoring smart road studs and the collision location flash from low frequency to high frequency to provide a secondary warning to passing vehicles and prevent accidents. The number of smart road studs between the monitoring smart road studs and the collision location is calculated using a matching algorithm. The expression for the matching algorithm is: n = L / d, where L is the set monitoring distance, d is the distance between two adjacent road studs, and n is the number of smart road studs between the monitoring smart road studs and the collision location. The smart road stud includes four light strips that can flash in four directions: front, back, left, and right. Two rows of smart road studs are installed on the roads on both sides near the guardrail, and the flashing light strips of the two rows of smart road studs provide guidance. The guidance includes: obtaining the lane involved in the collision event based on the flashing warning signal, and changing the color or frequency of the light strips in the four directions of the smart road studs in the corresponding lane, forming a light strip between the lane where the collision event occurred and the lane reserved to prevent secondary accidents, to remind people not to pass. The flashing warning system controls nearby surveillance cameras to monitor the location of the collision in real time and issues alerts to the collision to provide safety guidance.

2. The automatic safety early warning method for highways to prevent secondary accidents according to claim 1, characterized in that, The collision event will be published at the road information disclosure office in the area where the collision occurred.

3. The automatic safety early warning method for highways to prevent secondary accidents according to claim 1, characterized in that, Also includes: The location of the collision incident, along with relevant data from guardrails, smart road studs, video surveillance, and safety guidance systems, will be digitally collected, stored, and rendered onto a map for display.

4. An automatic safety early warning system for highways to prevent secondary accidents, characterized in that: The automatic safety early warning method for preventing secondary accidents on highways according to any one of claims 1 to 3 includes: The guardrail collision monitoring module is used to detect when a vehicle collides with the guardrail, and to issue a flashing warning to the guardrail guards at the front and rear ends of the collision event location. Based on the flashing warning signal, it issues a warning signal to make the smart lane behind the collision event location flash, transmits collision event-related data, and receives remote control. The smart road stud receives the warning signal and flashes to alert approaching vehicles. The road operation management module is used to receive signals from the guardrail collision monitoring module and the smart road stud, and to organize the received collision event-related data, issue traffic guidance reminder signals, and at the same time control the monitoring cameras near the location of the collision event to monitor the location of the collision event in real time. A safety guidance module, configured to publish the collision event based on the traffic guidance signal; and The video surveillance module is used to monitor the corresponding road based on the real-time monitoring signal and can push the monitoring video stream.

5. The automatic safety early warning system for highways to prevent secondary accidents according to claim 4, characterized in that, The smart road stud also includes: the ability to be charged by solar energy; the ability to monitor external pressure and transmit the monitored data to the main control unit and / or cloud server.

6. The automatic safety early warning system for highways to prevent secondary accidents according to claim 4, characterized in that, The road operation management module is also used to digitally collect and store the latitude and longitude coordinates of the installation locations of guardrails, smart road studs, video surveillance modules, and safety guidance modules, and render them onto a map for display. When multiple devices work together, it can output relevant operation information to the digital map on the monitoring screen for convenient unified monitoring and management.

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