A highway operation hidden danger management monitoring method and system

Abstract

The present application relates to the technical field of highway state evaluation, more particularly to a highway operation hidden danger management monitoring method and system. The scheme comprises obtaining all the thrower screenshots; online judgment is performed according to the thrower screenshots, the measured thrower shooting cross-sectional area is extracted, the horizontal moving speed and the longitudinal moving speed are calculated; the visual stimulation index and the sharp corner damage risk are calculated according to the thrower screenshots; the thrower natural loss rate is calculated according to the thrower screenshots; the clearable degree and the comprehensive damage index are calculated according to the horizontal moving speed and the longitudinal moving speed, combined with the visual stimulation index and the sharp corner damage risk; real-time analysis is performed according to the clearable degree, and an alarm long-term existence command is issued in appropriate cases. The scheme evaluates the thrower risk during driving on each section of the highway, and then monitors the thrower sharp corner number and estimates the moving state, realizing the hidden danger management of highway segmentation.

Description

Technical Field

[0001] This invention relates to the field of highway condition assessment technology, and more specifically, to a method and system for monitoring and managing potential operational hazards on expressways. Background Technology

[0002] When vehicles travel on the road, they may spill goods, stones, discarded tires, cardboard boxes, or other obstructions onto the road surface. These items spilled onto the road during vehicle travel are called spilled debris. Because spilled debris from vehicles poses safety hazards and may cause traffic accidents, resulting in loss of life and property damage, it is necessary to monitor spilled debris on the road to maintain traffic safety.

[0003] Prior to this invention, existing technologies primarily relied on establishing a background model through modeling methods to detect spilled materials. This involved acquiring surveillance video of the detection area and comparing the video images with the background model to determine the foreground, such as its perimeter, area, and center of gravity. However, this approach cannot effectively analyze the safety risks posed by spilled materials. Therefore, it is impossible to assess the risk of spilled materials on every section of highway, thus hindering hazard management based on the monitoring of spilled material corners and the prediction of its movement. Summary of the Invention

[0004] In view of the above problems, the present invention proposes a method and system for monitoring and managing hidden dangers in highway operation. The method assesses the risk of spillage during each section of the highway, and then monitors the number of sharp corners of the spillage and predicts its movement status to achieve segmented hidden danger management of the highway.

[0005] According to a first aspect of the present invention, a method for monitoring and managing potential operational hazards on highways is provided.

[0006] In one or more embodiments, preferably, the method for monitoring and managing potential safety hazards in highway operations includes:

[0007] Get screenshots of all the projectiles;

[0008] Based on the screenshot of the projectile, online judgment is performed, the actual measured cross-sectional area of ​​the projectile is extracted, and the lateral and longitudinal velocities are calculated.

[0009] Based on the screenshot of the projectiles, assess the visual irritation index and the risk of damage from sharp corners;

[0010] The natural decay rate of the spilled material is calculated based on the screenshot of the spilled material.

[0011] Based on the lateral and longitudinal velocities, the degree of erasure and the comprehensive damage index are calculated in combination with the visual stimulation index and the risk of damage from sharp corners.

[0012] Real-time analysis is performed based on the degree of erasure, and a long-term alarm command is issued when appropriate.

[0013] In one or more embodiments, preferably, obtaining all the projectile screenshots specifically includes:

[0014] Activate all sensors;

[0015] The sensors collect data in real time to obtain monitoring images of the entire highway.

[0016] The monitoring images are judged online. If the ground background is consistent with the preset ground background, the corresponding monitoring image is deleted; otherwise, it is saved as a screenshot of the spilled material.

[0017] In one or more embodiments, preferably, the step of performing online judgment based on the projectile screenshot, extracting the measured cross-sectional area of ​​the projectile, and calculating the lateral and longitudinal velocities specifically includes:

[0018] Set the cross-sectional area margin and determine whether the scattering screenshot satisfies the first calculation formula. If it does, issue the first command; otherwise, issue the second command.

[0019] Upon receiving the first command, the geometric center of the projectile is extracted, and the lateral and longitudinal velocities are calculated using the second calculation formula.

[0020] Upon receiving the second command, no action is taken.

[0021] The first calculation formula is:

[0022] M>SY

[0023] Wherein, SY is the cross-sectional area margin, and M is the measured cross-sectional area of ​​the projectile photographed;

[0024] The second calculation formula is:

[0025]

[0026] Where HV is the lateral velocity, ZV is the longitudinal velocity, and x t+1 Let y be the x-coordinate of the geometric center of the spill at time t+1. t+1 Let x be the ordinate of the geometric center of the spill at time t+1. t Let y be the x-coordinate of the geometric center of the spill at time t. t Let t be the ordinate of the geometric center of the spilled material at time t, and T be the monitoring period.

[0027] In one or more embodiments, preferably, the step of determining the visual irritation index and the risk of damage from sharp corners based on the splatter image specifically includes:

[0028] Obtain all the projectile screenshots, based on the geometry of the projectile screenshots;

[0029] Obtain the cross-sectional angles of each geometric shape;

[0030] The angle of the cross section is used to perform a sharp angle judgment logic using the third calculation formula;

[0031] The risk of damage to the sharp corner is calculated using the fourth calculation formula;

[0032] The visual stimulation index is calculated using the fifth calculation formula;

[0033] The third calculation formula is:

[0034]

[0035] Where J is the cross-sectional angle and L is the length of the protrusions on both sides of the sharp corner;

[0036] The fourth calculation formula is:

[0037] F1=SJ×M

[0038] Wherein, SJ represents the number of projected sharp corners, and F1 represents the risk of damage to the sharp corners;

[0039] The fifth calculation formula is:

[0040] F2 = G1 × G2

[0041] Wherein, F2 is the visual stimulation index, G1 is the number of hyperreflections per unit time, and G2 is the duration of hyperreflection per unit time.

[0042] In one or more embodiments, preferably, the calculation of the natural decay rate of the spilled material based on the spilled material screenshot specifically includes:

[0043] Analyze the measured cross-sectional area of ​​the projectile in the photograph to obtain the measured cross-sectional area of ​​the projectile at each moment;

[0044] Extract the measured cross-sectional area of ​​the spilled material at the initial moment, and calculate the natural decay rate of the spilled material using the sixth calculation formula;

[0045] The sixth calculation formula is:

[0046] VS = 100 × (M) t+1 -M t ) / tM0

[0047] Where VS is the natural decay rate of the spilled material, and M t+1 M represents the measured cross-sectional area of ​​the spilled material at time t+1. t Let Mt be the measured cross-sectional area of ​​the spilled material at time t, and M0 be the measured cross-sectional area of ​​the spilled material at the initial time.

[0048] In one or more embodiments, preferably, the calculation of the removability and comprehensive damage index based on the lateral speed and the longitudinal speed, combined with the visual stimulation index and the risk of damage from sharp corners, specifically includes:

[0049] The comprehensive damage index is calculated using the seventh calculation formula based on the number of projected sharp angles and the visual stimulation index.

[0050] Determine whether the comprehensive damage index is greater than a preset value. If it is, issue a clearing command; otherwise, do not take any action.

[0051] The degree of eradication can be calculated using the eighth calculation formula;

[0052] The seventh calculation formula is:

[0053] P = (F1 + F2)(100 - VS)

[0054] Wherein, P is the comprehensive damage index;

[0055] The eighth calculation formula is:

[0056]

[0057] Wherein, QD represents the degree of clearability, KT represents the total area of ​​the clearable region within the movement range, and KA represents the overall area of ​​the movement range.

[0058] In one or more embodiments, preferably, the step of performing real-time analysis based on the degree of erasure and issuing a long-term alarm command when appropriate specifically includes:

[0059] Upon receiving the cleanup command, it is determined whether the cleanup capability exceeds a preset margin. If the cleanup capability exceeds the preset margin, a wait-for-cleanup command is issued.

[0060] When the degree of erasure is not greater than a preset margin, an alarm command is automatically issued to ensure the long-term existence of the alarm.

[0061] According to a second aspect of the present invention, a highway operation hazard management and monitoring system is provided.

[0062] In one or more embodiments, preferably, the highway operation hazard management and monitoring system includes:

[0063] The first acquisition module is used to obtain screenshots of all the spilled materials;

[0064] The second acquisition module is used to make online judgments based on the screenshot of the projectile, extract the measured cross-sectional area of ​​the projectile, and calculate the lateral and longitudinal speeds.

[0065] The index extraction module is used to determine the visual stimulation index and the risk of damage from sharp corners based on the screenshot of the projectile.

[0066] The consumption analysis module is used to calculate the natural decay rate of the spilled material based on the spilled material screenshot.

[0067] The risk analysis module is used to calculate the degree of removability and the comprehensive damage index based on the lateral speed and the longitudinal speed, combined with the visual stimulation index and the risk of damage from sharp corners;

[0068] The online judgment and control module is used to perform real-time analysis based on the degree of erasure and issue a long-term alarm command when appropriate.

[0069] According to a third aspect of the present invention, a computer-readable storage medium is provided that stores computer program instructions thereon, which, when executed by a processor, implement the method as described in any one of the first aspects of the present invention.

[0070] According to a fourth aspect of the present invention, an electronic device is provided, including a memory and a processor, wherein the memory is used to store one or more computer program instructions, wherein the one or more computer program instructions are executed by the processor to implement the method described in any one aspect of the present invention.

[0071] The technical solutions provided by the embodiments of the present invention may include the following beneficial effects:

[0072] By obtaining parameters such as the number of sharp corners and reflectivity of spilled materials through online monitoring, the corresponding damage monitoring index is calculated to identify real-time road risks and hidden dangers.

[0073] By analyzing the movement of spilled materials over a period of time, elimination and persistence indices are calculated to predict changes in online hazards and formulate corresponding management strategies.

[0074] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings.

[0075] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0076] To more clearly illustrate the technical solutions in the embodiments 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0077] Figure 1 This is a flowchart of a method for managing and monitoring potential hazards in highway operation, according to an embodiment of the present invention.

[0078] Figure 2 This is a flowchart illustrating the process of obtaining screenshots of all spilled materials in a highway operation hazard management and monitoring method according to an embodiment of the present invention.

[0079] Figure 3 This is a flowchart illustrating a method for monitoring and managing potential hazards in highway operations according to an embodiment of the present invention. The method involves online judgment based on a screenshot of spilled material, extracting the measured cross-sectional area of ​​the spilled material, and calculating the lateral and longitudinal velocities.

[0080] Figure 4 This is a flowchart illustrating the process of calculating the visual stimuli index and sharp corner damage risk based on a screenshot of the spilled material in a highway operation hazard management and monitoring method according to an embodiment of the present invention.

[0081] Figure 5 This is a flowchart illustrating the calculation of the natural decay rate of spilled material based on a screenshot of the spilled material in a highway operation hazard management and monitoring method according to an embodiment of the present invention.

[0082] Figure 6 This is a flowchart illustrating the calculation of the degree of removability and the comprehensive damage index based on the lateral and longitudinal movement speeds, combined with the visual stimulation index and the risk of damage from sharp corners, in a highway operation hazard management and monitoring method according to an embodiment of the present invention.

[0083] Figure 7 This is a flowchart illustrating a method for monitoring and managing potential hazards in highway operations according to an embodiment of the present invention, which involves real-time analysis based on the degree of remediability and, where appropriate, issuing a long-term alarm command.

[0084] Figure 8 This is a structural diagram of a highway operation hazard management and monitoring system according to an embodiment of the present invention.

[0085] Figure 9 This is a structural diagram of an electronic device according to one embodiment of the present invention. Detailed Implementation

[0086] In some of the processes described in the specification, claims, and accompanying drawings of this invention, multiple operations appearing in a specific order are included. However, it should be clearly understood that these operations may not be executed in the order they appear herein, or may be executed in parallel. The operation numbers, such as 101, 102, etc., are merely used to distinguish different operations and do not represent any execution order. Furthermore, these processes may include more or fewer operations, and these operations may be executed sequentially or in parallel. It should be noted that the descriptions such as "first," "second," etc., in this document are used to distinguish different messages, devices, modules, etc., and do not represent a sequential order, nor do they limit "first" and "second" to different types.

[0087] 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.

[0088] When vehicles travel on the road, they may spill goods, stones, discarded tires, cardboard boxes, or other obstructions onto the road surface. These items spilled onto the road during vehicle travel are called spilled debris. Because spilled debris from vehicles poses safety hazards and may cause traffic accidents, resulting in loss of life and property damage, it is necessary to monitor spilled debris on the road to maintain traffic safety.

[0089] Prior to this invention, existing technologies primarily relied on establishing a background model through modeling methods to detect spilled materials. This involved acquiring surveillance video of the detection area and comparing the video images with the background model to determine the foreground, such as its perimeter, area, and center of gravity. However, this approach cannot effectively analyze the safety risks posed by spilled materials. Therefore, it is impossible to assess the risk of spilled materials on every section of highway, thus hindering hazard management based on the monitoring of spilled material corners and the prediction of its movement.

[0090] This invention provides a method and system for monitoring and managing potential hazards in highway operations. This solution assesses the risk of debris spilled during travel on each section of the highway, and then monitors the number of sharp corners of the spilled debris and predicts its movement, thereby achieving segmented hazard management of the highway.

[0091] According to a first aspect of the present invention, a method for monitoring and managing potential operational hazards on highways is provided.

[0092] Figure 1This is a flowchart of a method for managing and monitoring potential hazards in highway operation, according to an embodiment of the present invention.

[0093] In one or more embodiments, preferably, the method for monitoring and managing potential safety hazards in highway operations includes:

[0094] S101, Obtain screenshots of all projectiles;

[0095] S102. Based on the screenshot of the projectile, make an online judgment, extract the measured cross-sectional area of ​​the projectile, and calculate the lateral and longitudinal speeds.

[0096] S103. Calculate the visual stimulation index and the risk of damage to sharp corners based on the screenshot of the spilled material;

[0097] S104. Calculate the natural decay rate of the spilled material based on the screenshot of the spilled material;

[0098] S105. Based on the lateral speed and the longitudinal speed, combined with the visual stimulation index and the risk of damage to sharp corners, calculate the degree of erasure and the comprehensive damage index.

[0099] S106. Perform real-time analysis based on the degree of erasure, and issue a long-term alarm command if appropriate.

[0100] In this embodiment of the invention, the risk of spillage during each segment of highway travel is assessed, and then based on the monitoring of the number of sharp corners of the spillage and the prediction of its movement status, segmented hazard management of highways is achieved. On the one hand, parameters such as the number of sharp corners and reflectivity of the spillage are obtained through online monitoring, and the corresponding damage monitoring index is calculated to identify real-time road risks and online hazards. On the other hand, by calculating the elimination and persistence index based on the movement of the spillage over a period of time, the changes in online hazards are predicted, and corresponding management strategies are formed.

[0101] Figure 2 This is a flowchart illustrating the process of obtaining screenshots of all spilled materials in a highway operation hazard management and monitoring method according to an embodiment of the present invention.

[0102] like Figure 2 As shown, in one or more embodiments, preferably, obtaining all the projectile screenshots specifically includes:

[0103] S201, Activate all sensors;

[0104] S202. Real-time data acquisition is performed using the sensors to obtain monitoring images of the entire highway;

[0105] S203. The monitoring image is judged online. If the ground background is consistent with the preset ground background, the corresponding monitoring image is deleted; otherwise, it is saved as a screenshot of the spilled material.

[0106] In this embodiment of the invention, in order to enable online identification and analysis of spilled materials, materials that are completely consistent with the background are considered to be free of spilled materials. Only when there are differences are materials saved and analyzed, thereby supporting rapid analysis.

[0107] Figure 3 This is a flowchart illustrating a method for monitoring and managing potential hazards in highway operations according to an embodiment of the present invention. The method involves online judgment based on a screenshot of spilled material, extracting the measured cross-sectional area of ​​the spilled material, and calculating the lateral and longitudinal velocities.

[0108] like Figure 3 As shown, in one or more embodiments, preferably, the step of performing online judgment based on the projectile screenshot, extracting the measured cross-sectional area of ​​the projectile, and calculating the lateral and longitudinal velocities specifically includes:

[0109] S301. Set the cross-sectional area margin and determine whether the scattering screenshot satisfies the first calculation formula. If it does, issue the first command; otherwise, issue the second command.

[0110] S302. After receiving the first command, extract the geometric center of the projectile and use the second calculation formula to calculate the lateral velocity and longitudinal velocity.

[0111] S303. No action is taken after receiving the second command;

[0112] The first calculation formula is:

[0113] M>SY

[0114] Wherein, SY is the cross-sectional area margin, and M is the measured cross-sectional area of ​​the projectile photographed;

[0115] The second calculation formula is:

[0116]

[0117] Where HV is the lateral velocity, ZV is the longitudinal velocity, and x t+1 Let y be the x-coordinate of the geometric center of the spill at time t+1. t+1 Let x be the ordinate of the geometric center of the spill at time t+1. t Let y be the x-coordinate of the geometric center of the spill at time t. t Let t be the ordinate of the geometric center of the spilled material at time t, and T be the monitoring period.

[0118] In this embodiment of the invention, the method of supporting the removal of spilled material and whether the specific spilled material needs to be analyzed is considered. If the area of ​​the spilled material is not large enough, it will not be analyzed as a spilled material.

[0119] Figure 4 This is a flowchart illustrating the process of calculating the visual stimuli index and sharp corner damage risk based on a screenshot of the spilled material in a highway operation hazard management and monitoring method according to an embodiment of the present invention.

[0120] like Figure 4 As shown, in one or more embodiments, preferably, the step of determining the visual irritation index and the risk of damage to sharp corners based on the splatter image specifically includes:

[0121] S401. Obtain all the projectile screenshots, based on the geometry of the projectile screenshots;

[0122] S402. Obtain the cross-sectional angles of each geometric shape;

[0123] S403. The angle of the cross section is determined by the third calculation formula to identify sharp angles.

[0124] S404. The risk of damage to the sharp corner is calculated using the fourth calculation formula;

[0125] S405. Calculate the visual stimulation index using the fifth calculation formula;

[0126] The third calculation formula is:

[0127]

[0128] Where J is the cross-sectional angle and L is the length of the protrusions on both sides of the sharp corner;

[0129] The fourth calculation formula is:

[0130] F1 = SJ × M

[0131] Wherein, SJ represents the number of projected sharp corners, and F1 represents the risk of damage to the sharp corners;

[0132] The fifth calculation formula is:

[0133] F2 = G1 × G2

[0134] Wherein, F2 is the visual stimulation index, G1 is the number of hyperreflections per unit time, and G2 is the duration of hyperreflection per unit time.

[0135] In this embodiment of the invention, geometric shapes are formed based on different screenshots of the projectiles. Then, the corresponding projectiles can be analyzed based on the geometric shapes. The analysis can determine whether the reflections generated per unit time and the corresponding sharp corners will cause certain risks. These risk indices are key data for the entire projectile analysis.

[0136] Figure 5 This is a flowchart illustrating the calculation of the natural decay rate of spilled material based on a screenshot of the spilled material in a highway operation hazard management and monitoring method according to an embodiment of the present invention.

[0137] like Figure 5 As shown, in one or more embodiments, preferably, the calculation of the natural decay rate of the spilled material based on the spilled material screenshot specifically includes:

[0138] S501. Analyze the measured cross-sectional area of ​​the thrown object to obtain the measured cross-sectional area of ​​the thrown object at each moment.

[0139] S502. Extract the measured cross-sectional area of ​​the spilled material at the initial moment, and calculate the natural decay rate of the spilled material using the sixth calculation formula;

[0140] The sixth calculation formula is:

[0141] VS = 100 × (M) t+1 -M t ) / tM0

[0142] Where VS is the natural decay rate of the spilled material, and M t+1 M represents the measured cross-sectional area of ​​the spilled material at time t+1. t Let Mt be the measured cross-sectional area of ​​the spilled material at time t, and M0 be the measured cross-sectional area of ​​the spilled material at the initial time.

[0143] In this embodiment of the invention, since different types of scattering materials may produce different natural wear and tear effects, for example, although paper scraps are large and have many sharp corners, they will cause great wear and loss after being hit and run over by vehicles. Therefore, the sixth calculation formula is used for real-time analysis.

[0144] Figure 6 This is a flowchart illustrating the calculation of the degree of removability and the comprehensive damage index based on the lateral and longitudinal movement speeds, combined with the visual stimulation index and the risk of damage from sharp corners, in a highway operation hazard management and monitoring method according to an embodiment of the present invention.

[0145] like Figure 6As shown, in one or more embodiments, preferably, the calculation of the removability and comprehensive damage index based on the lateral speed and the longitudinal speed, combined with the visual stimulation index and the risk of damage from sharp corners, specifically includes:

[0146] S601. Calculate the comprehensive damage index using the seventh calculation formula based on the number of projected sharp angles and the visual stimulation index;

[0147] S602. Determine whether the comprehensive damage index is greater than the comprehensive preset value. If it is greater, issue a clearing command; otherwise, do not process it.

[0148] S603. Calculate the degree of removal using the eighth calculation formula;

[0149] The seventh calculation formula is:

[0150] P = (F1 + F2)(100 - VS)

[0151] Wherein, P is the comprehensive damage index;

[0152] The eighth calculation formula is:

[0153]

[0154] Wherein, QD represents the degree of clearability, KT represents the total area of ​​the clearable region within the movement range, and KA represents the overall area of ​​the movement range.

[0155] In this embodiment of the invention, the specific movement state and the range that each projectile can move are combined with the previously obtained specific movement state and the range that each projectile can move. Then, the previously calculated projection angle number and visual stimulation index are combined to perform online analysis and obtain a comprehensive index. This comprehensive index reflects whether the corresponding projectile will have a situation greater than the comprehensive preset value under different attenuation rates. The comprehensive preset value is a numerical value, which is preferably set to 500 in this embodiment of the invention.

[0156] Figure 7 This is a flowchart illustrating a method for monitoring and managing potential hazards in highway operations according to an embodiment of the present invention, which involves real-time analysis based on the degree of remediability and, where appropriate, issuing a long-term alarm command.

[0157] like Figure 7 As shown, in one or more embodiments, preferably, the step of performing real-time analysis based on the degree of erasure and issuing a long-term alarm command when appropriate specifically includes:

[0158] S701. After receiving the cleaning command, determine whether the degree of cleanability is greater than a preset margin. If the degree of cleanability is greater than the preset margin, issue a waiting cleaning command.

[0159] S702. When the degree of clearability is not greater than the preset margin, an alarm command for long-term existence is automatically issued.

[0160] In this embodiment of the invention, during actual execution, there will inevitably be some objects that are easy to remove and some that are not easy to remove. Therefore, targeted handling is required. After automatically issuing an alarm command for long-term existence, the system will prompt the user to choose other methods to remove the object after a preset time period, or to close the corresponding lane, etc.

[0161] According to a second aspect of the present invention, a highway operation hazard management and monitoring system is provided.

[0162] Figure 8 This is a structural diagram of a highway operation hazard management and monitoring system according to an embodiment of the present invention.

[0163] In one or more embodiments, preferably, the highway operation hazard management and monitoring system includes:

[0164] The first acquisition module 801 is used to obtain screenshots of all the spilled materials;

[0165] The second acquisition module 802 is used to make online judgments based on the screenshot of the projectile, extract the measured cross-sectional area of ​​the projectile in the screenshot, and calculate the lateral and longitudinal speeds.

[0166] The index extraction module 803 is used to determine the visual stimulation index and the risk of damage to sharp corners based on the screenshot of the projectile.

[0167] The consumption analysis module 804 is used to calculate the natural decay rate of the spilled material based on the spilled material screenshot.

[0168] Risk analysis module 805 is used to calculate the degree of cleanability and comprehensive damage index based on the lateral speed and the longitudinal speed, combined with the visual stimulation index and the risk of damage from sharp corners;

[0169] The online judgment and control module 806 is used to perform real-time analysis based on the degree of erasure and issue a long-term alarm command when appropriate.

[0170] In this embodiment of the invention, in order to enable rapid state assessment, a modular design is used to achieve adaptive learning and analysis for different regions, thereby providing a risk management and control method based on spill state analysis.

[0171] According to a third aspect of the present invention, a computer-readable storage medium is provided that stores computer program instructions thereon, which, when executed by a processor, implement the method as described in any one of the first aspects of the present invention.

[0172] According to a fourth aspect of the present invention, an electronic device is provided. Figure 9 This is a structural diagram of an electronic device according to one embodiment of the present invention. Figure 9 The illustrated electronic device is a general-purpose highway operation hazard management and monitoring device, comprising a general-purpose computer hardware structure, including at least a processor 901 and a memory 902. The processor 901 and memory 902 are connected via a bus 903. The memory 902 is adapted to store instructions or programs executable by the processor 901. The processor 901 can be a standalone microprocessor or a collection of one or more microprocessors. Thus, the processor 901 executes the instructions stored in the memory 902, thereby performing the method flow of the embodiments of the present invention as described above to process data and control other devices. The bus 903 connects the aforementioned components together, and also connects these components to a display controller 904, a display device, and an input / output (I / O) device 905. The input / output (I / O) device 905 can be a mouse, keyboard, modem, network interface, touch input device, motion-sensing input device, printer, and other devices known in the art. Typically, the input / output device 905 is connected to the system via an input / output (I / O) controller 906.

[0173] The technical solutions provided by the embodiments of the present invention may include the following beneficial effects:

[0174] By obtaining parameters such as the number of sharp corners and reflectivity of spilled materials through online monitoring, the corresponding damage monitoring index is calculated to identify real-time road risks and hidden dangers.

[0175] By analyzing the movement of spilled materials over a period of time, elimination and persistence indices are calculated to predict changes in online hazards and formulate corresponding management strategies.

[0176] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0177] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will 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 apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0178] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function 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.

[0179] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable 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.

[0180] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A method for monitoring and managing potential operational hazards on highways, characterized in that, The method includes: Get screenshots of all the projectiles; Based on the screenshot of the projectile, online judgment is performed, the actual measured cross-sectional area of ​​the projectile is extracted, and the lateral and longitudinal velocities are calculated. The visual stimulation index and sharp corner damage risk are determined based on the projectile screenshots, including: obtaining all projectile screenshots and the geometry of the projectile screenshots; Obtain the cross-sectional angles of each geometric shape; The angle of the cross section is used to perform a sharp angle judgment logic using the third calculation formula; The risk of damage to the sharp corner is calculated using the fourth calculation formula; The visual stimulation index is calculated using the fifth calculation formula; The third calculation formula is: Where J is the cross-sectional angle and L is the length of the protrusions on both sides of the sharp corner; The fourth calculation formula is: F1=SJ×M Wherein, SJ represents the number of projected sharp corners, and F1 represents the risk of damage to the sharp corners; The fifth calculation formula is: F2=G1×G2 Wherein, F2 is the visual stimulation index, G1 is the number of hyperreflections per unit time, and G2 is the hyperreflection duration per unit time; The natural decay rate of the spilled material is calculated based on the aforementioned screenshot, including: Analyze the measured cross-sectional area of ​​the projectile in the photograph to obtain the measured cross-sectional area of ​​the projectile at each moment; Extract the measured cross-sectional area of ​​the spilled material at the initial moment, and calculate the natural decay rate of the spilled material using the sixth calculation formula; The sixth calculation formula is: VS=100×(M t+1 -M t ) / tM0 Where VS is the natural decay rate of the spilled material, and M t+1 M represents the measured cross-sectional area of ​​the spilled material at time t+1. t Let Mt be the measured cross-sectional area of ​​the ejected material at time t, and M0 be the measured cross-sectional area of ​​the ejected material at the initial time. Based on the lateral and longitudinal velocities, and in conjunction with the visual stimulation index and the risk of damage from sharp corners, a calculation of the degree of erasure and a comprehensive damage index is performed, including: The comprehensive damage index is calculated using the seventh calculation formula based on the number of projected sharp angles and the visual stimulation index. Determine whether the comprehensive damage index is greater than a preset value. If it is, issue a clearing command; otherwise, do not take any action. The degree of eradication can be calculated using the eighth calculation formula; The seventh calculation formula is: P=(F1+F2)(100-VS) Wherein, P is the comprehensive damage index; The eighth calculation formula is: Where QD represents the degree of clearability, KT represents the total area of ​​the clearable area within the movement range, and KA represents the overall area of ​​the movement range; Real-time analysis is performed based on the degree of erasure, and an alarm command is issued for long-term persistence when appropriate.

2. The method for monitoring and managing potential safety hazards in highway operations as described in claim 1, characterized in that, Obtaining all the projectile screenshots specifically includes: Activate all sensors; The sensors collect data in real time to obtain monitoring images of the entire highway. The monitoring images are judged online. If the ground background is consistent with the preset ground background, the corresponding monitoring image is deleted; otherwise, it is saved as a screenshot of the spilled material.

3. The method for monitoring and managing potential safety hazards in highway operations as described in claim 2, characterized in that, The step of performing online judgment based on the screenshot of the projectile, extracting the measured cross-sectional area of ​​the projectile, and calculating the lateral and longitudinal velocities specifically includes: Set the cross-sectional area margin and determine whether the scattering screenshot satisfies the first calculation formula. If it does, issue the first command; otherwise, issue the second command. Upon receiving the first command, the geometric center of the projectile is extracted, and the lateral and longitudinal velocities are calculated using the second calculation formula. Upon receiving the second command, no action is taken. The first calculation formula is: M>SY Wherein, SY is the cross-sectional area margin, and M is the measured cross-sectional area of ​​the projectile photographed; The second calculation formula is: Where HV is the lateral velocity, ZV is the longitudinal velocity, and x t+1 Let y be the x-coordinate of the geometric center of the spill at time t+1. t+1 Let x be the ordinate of the geometric center of the spill at time t+1. t Let y be the x-coordinate of the geometric center of the spill at time t. t Let t be the ordinate of the geometric center of the spilled material at time t, and T be the monitoring period.

4. The method for monitoring and managing potential safety hazards in highway operations as described in claim 3, characterized in that, The step of performing real-time analysis based on the degree of erasure and issuing a long-term alarm command when appropriate includes: Upon receiving the cleanup command, it is determined whether the cleanup capability exceeds a preset margin. If the cleanup capability exceeds the preset margin, a wait-for-cleanup command is issued. When the degree of erasure is not greater than a preset margin, an alarm command is automatically issued to ensure the long-term existence of the alarm.

5. A highway operation hazard management and monitoring system, characterized in that, The system is used to implement the method as described in any one of claims 1-4, the system comprising: The first acquisition module is used to obtain screenshots of all the spilled materials; The second acquisition module is used to make online judgments based on the screenshot of the projectile, extract the measured cross-sectional area of ​​the projectile, and calculate the lateral and longitudinal speeds. The index extraction module is used to determine the visual stimulation index and the risk of damage from sharp corners based on the screenshot of the projectile. The consumption analysis module is used to calculate the natural decay rate of the spilled material based on the spilled material screenshot. The risk analysis module is used to calculate the degree of removability and the comprehensive damage index based on the lateral speed and the longitudinal speed, combined with the visual stimulation index and the risk of damage from sharp corners; The online judgment and control module is used to perform real-time analysis based on the degree of erasure and issue a long-term alarm command when appropriate.

6. A computer-readable storage medium storing computer program instructions thereon, characterized in that, The computer program instructions, when executed by a processor, implement the method as described in any one of claims 1-4.

7. An electronic device comprising a memory and a processor, characterized in that, The memory is used to store one or more computer program instructions, wherein the one or more computer program instructions are executed by the processor to implement the method as described in any one of claims 1-4.

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