CN115565378B - Method, system, terminal and medium for dynamically releasing highway incident information - Google Patents
Method, system, terminal and medium for dynamically releasing highway incident information Download PDFInfo
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Abstract
The invention discloses a dynamic publishing method, a system, a terminal and a medium of expressway event information, relating to the technical field of intelligent traffic, and the key points of the technical scheme are as follows: in the process of determining the standard speed limit information of the target information boards, the vehicle density information in the corresponding coverage distance of each target information board is independently considered, and the whole vehicle density condition of the road section between the target information boards and the traffic accident site is also considered, so that the standard speed limit information and the predicted driving time issued by each target information board are more accurate and reliable; in addition, the alternative routes which are selected to continue driving on the expressway and run out at a high speed are compared according to the oil consumption information, the running time and the running distance, so that parameter data can be visually and accurately provided for drivers, the vehicle shunting is facilitated, the road congestion degree caused by traffic accidents is reduced, and the running cost of shunting vehicles is saved.
Description
Technical Field
The invention relates to the technical field of intelligent traffic, in particular to a method, a system, a terminal and a medium for dynamically publishing highway incident information.
Background
Along with the continuous development of intelligent high-speed construction, various information boards are installed at places such as highway entrances, road sides and tunnels, highway events can be displayed through the information boards, and therefore drivers of vehicles can conveniently and quickly know the road conditions. The traditional information board has the problems of uniform release information, constant release range from an event place, simple release information and the like when the information is released.
Therefore, in the prior art, the dynamic analysis of the overall development situation of the traffic incident is recorded according to the information of the traffic incident, such as the incident type, the vehicle density, the incident location and the like, so that the information boards at different distances from the incident location can dynamically release different information, and the information board release range for releasing the information aiming at the traffic incident is flexibly determined. However, in the prior art, the information issued for highway events is limited to drivers to know related information, such as speed limit information, driving time, event intervals and the like, and has no great effect on traffic jam regulation; in addition, in the process of dynamically analyzing the overall development situation, the density change condition of the vehicle at the shunting outlet is ignored, so that the fluctuation of the analysis result of the overall development situation is large, and meanwhile, the density abnormality of the vehicle at a part of road sections can also cause the change of the analysis result of the overall development situation.
Therefore, how to design a dynamic publishing method, system, terminal and medium for highway incident information, which can overcome the above-mentioned defects, is a problem that we are in urgent need to solve at present.
Disclosure of Invention
In order to solve the deficiency in the prior art, the invention aims to provide a dynamic publishing method, a system, a terminal and a medium of highway incident information, which not only consider the vehicle density information in the corresponding coverage distance of each target information board, but also consider the whole vehicle density condition of the road section between the target information board and the traffic accident place, so that the standard speed limit information published by each target information board and the predicted driving time are more accurate and reliable; in addition, the alternative routes which are selected to continue driving on the expressway and run out at a high speed are compared according to the oil consumption information, the running time and the running distance, so that parameter data can be visually and accurately provided for drivers, the vehicle shunting is facilitated, the road congestion degree caused by traffic accidents is reduced, and the running cost of shunting vehicles is saved.
The technical purpose of the invention is realized by the following technical scheme:
in a first aspect, a method for dynamically publishing highway incident information is provided, which comprises the following steps:
determining the drainage speed of the vehicle according to the reported information of the traffic accident and the number of lanes at the accident position;
acquiring vehicle density information within the coverage distance corresponding to all target information boards to determine the initial speed limit information of each target information board;
correcting the initial speed limit information of the current target information board by combining the initial speed limit information of the front target information board to obtain standard speed limit information, and determining the predicted running time of the current target information board according to the standard speed limit information and the coverage distance;
extracting target message signs with exits in the coverage distances of all the target message signs as shunting message signs, and determining a shunting recommendation value according to the comparison of shunting and non-shunting fuel consumption information, driving time and driving distance;
determining the vehicle shunt flow according to the total number of vehicles, the number of actual lanes and the shunt recommended value of the coverage distance corresponding to the shunt information board, and performing shunt correction on the standard speed limit information and the predicted driving time of the shunt information board according to the vehicle shunt flow to obtain final standard speed limit information and final predicted driving time;
the information including event interval, accumulated running time and standard speed limit information is dynamically issued through a target information board, and the shunting information board also issues shunting recommendation values.
Further, the formula for calculating the vehicle discharge speed is specifically as follows:
or the following steps:
wherein the content of the first and second substances,
representing vehicle discharge speed;
represents the amount of vehicle flow in a unit time under normal conditions;
indicating the number of lanes at the accident;
indicating the number of lanes occupied by the accident.
Further, the determination process of the initial speed limit information specifically includes:
determining an average vehicle distance according to the vehicle density information;
and the average vehicle distance is taken as the safe braking distance to represent the initial speed limit information of the highest running speed.
Further, the determination process of the standard speed limit information specifically includes:
carrying out interpolation processing on the speed limit information corresponding to the current target information board according to the initial speed limit information of the front target information board to obtain the estimated speed limit information of the current target information board;
and taking the average value of the estimated speed limit information and the initial speed limit information of the current target information board as the standard speed limit information of the current target information board.
Further, the calculation formula of the shunt recommendation value is specifically:
wherein, the first and the second end of the pipe are connected with each other,
representing a shunt recommendation value;
representing the average fuel consumption of the road section between the branch outlet and the traffic accident;
representing the average value of oil consumption of a road section between a traffic accident position and a confluence inlet;
indicating a split flowThe average fuel consumption of the road section between the outlet and the confluence inlet;
a predicted travel time representing an accumulation of links between the diversion port and the traffic accident;
representing the total travel time of the section between the branch outlet and the confluence inlet;
representing a travel time of a section between the traffic accident site and the confluence entrance;
representing a section length of a section between the outflow split port and the traffic accident;
a section length representing a section between the branch flow outlet and the confluence flow inlet;
indicating the length of the road segment between the traffic accident and the merging portal.
Further, the calculation formula of the vehicle split flow is specifically as follows:
wherein, the first and the second end of the pipe are connected with each other,
indicating a vehicle split flow;
representing the total number of vehicles in the coverage distance corresponding to the shunting information board;
representing a shunt recommendation value;
the number of actual lanes of the coverage distance corresponding to the flow dividing information plate is shown.
Further, the split correction process of the standard speed limit information and the predicted travel time specifically comprises the following steps:
dynamically adjusting vehicle density information corresponding to the covering distance according to the vehicle split flow, and updating initial speed limit information according to the adjusted vehicle density information;
and re-determining the standard speed limit information and the predicted running time according to the updated initial speed limit information to obtain the final standard speed limit information and the final predicted running time.
In a second aspect, a dynamic publishing system for highway incident information is provided, which comprises:
the accident analysis module is used for determining the vehicle drainage speed according to the reported information of the traffic accident and the number of lanes at the accident;
the speed limit analysis module is used for acquiring vehicle density information within the coverage distance corresponding to all the target information boards to determine the initial speed limit information of each target information board;
the speed limit correction module is used for correcting the initial speed limit information of the current target information board by combining the initial speed limit information of the front target information board to obtain standard speed limit information and determining the predicted driving time of the current target information board according to the standard speed limit information and the coverage distance;
the shunt analysis module is used for extracting target information boards with exits in the coverage distances of all the target information boards as shunt information boards and determining a shunt recommended value according to the comparison of shunt and non-shunt oil consumption information, driving time and driving distance;
the shunting correction module is used for determining vehicle shunting flow according to the total number of vehicles, the actual number of lanes and the shunting recommended value of the coverage distance corresponding to the shunting intelligence board, and carrying out shunting correction on the standard speed limit information and the predicted running time of the shunting intelligence board according to the vehicle shunting flow to obtain final standard speed limit information and final predicted running time;
the information publishing module is used for dynamically publishing information including event intervals, accumulated running time and standard speed limit information through the target information board, and the shunting information board also publishes shunting recommendation values.
In a third aspect, there is provided a computer terminal comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the method for dynamically distributing highway event intelligence information according to any one of the first aspect when executing the program.
In a fourth aspect, there is provided a computer readable medium having stored thereon a computer program which is executed by a processor and which can implement the dynamic distribution method of highway event intelligence information according to any one of the first aspect.
Compared with the prior art, the invention has the following beneficial effects:
1. in the dynamic publishing method of the expressway event information, the vehicle density information in the corresponding coverage distance of each target information board is considered independently in the process of determining the standard speed limit information of the target information boards, and the overall vehicle density condition of the road sections between the target information boards and the traffic accident places is also considered, so that the standard speed limit information published by each target information board and the predicted driving time are more accurate and reliable; in addition, the alternative routes which are selected to continue driving on the expressway and run out at a high speed are compared according to the oil consumption information, the running time and the running distance, so that parameter data can be visually and accurately provided for drivers, the vehicle shunting is facilitated, the road congestion degree caused by traffic accidents is reduced, and the running cost is saved for shunting vehicles;
2. according to the method, the vehicle drainage speed in the accident state is obtained through estimation and analysis according to the number of accident occupation roads of the traffic accident and the driving condition of the road in the normal state at the traffic accident, and accurate reference data can be provided for accident development situation analysis;
3. in the calculation process of the vehicle shunt volume, the influence of the information board on the vehicle shunt after issuing the information including the shunt recommendation value is considered, and the feasibility of the shunt under the condition of parallel lanes is considered, so that the vehicle shunt volume is more consistent with the actual condition.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a flow chart in an embodiment of the invention;
fig. 2 is a block diagram of a system in an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1: the dynamic publishing method of the expressway event information, as shown in figure 1, comprises the following steps:
s1: determining the drainage speed of the vehicle according to the reported information of the traffic accident and the number of lanes at the accident position; the traffic accident reporting information generally comprises information such as positioning information of a traffic accident position, specific types of the traffic accident and the like;
s2: acquiring vehicle density information within the coverage distance corresponding to all target information boards to determine the initial speed limit information of each target information board; the coverage distance of the current target information board is a road section between the current target information board and the adjacent front side target information board;
s3: correcting the initial speed limit information of the current target information board by combining the initial speed limit information of the front-side target information board to obtain standard speed limit information, and determining the predicted driving time of the current target information board according to the standard speed limit information and the coverage distance;
s4: extracting target information boards with exits in the coverage distances of all the target information boards as shunting information boards, and determining shunting recommended values according to the shunting and non-shunting oil consumption information, the driving time and the driving distance; the larger the shunting recommendation value is, the lower the time cost and material resource cost consumed by shunting the vehicle is;
s5: determining the vehicle shunt flow according to the total number of vehicles, the number of actual lanes and the shunt recommended value of the coverage distance corresponding to the shunt information board, and performing shunt correction on the standard speed limit information and the predicted driving time of the shunt information board according to the vehicle shunt flow to obtain final standard speed limit information and final predicted driving time;
s6: dynamically publishing information including event intervals, accumulated running time and standard speed limit information through a target information board, and publishing a shunt recommended value through a shunt information board; the event interval represents the distance between the traffic accident position and the target information board; the accumulated travel time represents all travel time from the target information board to the traffic accident.
As an alternative embodiment, the formula for calculating the vehicle displacement speed is specifically as follows:
wherein, the first and the second end of the pipe are connected with each other,
representing vehicle discharge speed;
represents the amount of vehicle flow in a unit time under normal conditions;
representing the number of lanes at the accident;
indicating the number of lanes occupied by the accident.
In order to adapt to road sections with different lane data, the calculation formula of the vehicle drainage speed can also be as follows:
the determination process of the initial speed limit information specifically comprises the following steps: determining an average vehicle distance according to the vehicle density information; and the average vehicle distance is taken as the safe braking distance to represent the initial speed limit information of the highest running speed.
The determination process of the standard speed limit information specifically comprises the following steps: carrying out interpolation processing on the speed limit information corresponding to the current target information board according to the initial speed limit information of the front target information board to obtain the estimated speed limit information of the current target information board; and taking the average value of the estimated speed limit information and the initial speed limit information of the current target information board as the standard speed limit information of the current target information board.
The calculation formula of the shunt recommendation value is specifically as follows:
wherein the content of the first and second substances,
representing a shunt recommendation value;
representing the average fuel consumption of the road section between the branch outlet and the traffic accident;
representing the average value of oil consumption of a road section between a traffic accident position and a confluence inlet;
the average fuel consumption of a road section between the branch flow outlet and the confluence inlet is represented;
a predicted travel time representing an accumulation of links between the diversion port and the traffic accident;
representing the total travel time of the road section between the branch outlet and the confluence inlet;
representing the travel time of a road section between the traffic accident position and the confluence inlet;
representing a section length of a section between the outflow split port and the traffic accident;
a section length representing a section between the branch flow outlet and the confluence flow inlet;
indicating the length of the road segment between the traffic accident site and the confluence entrance.
The calculation formula of the vehicle shunt capacity is specifically as follows:
wherein the content of the first and second substances,
indicating a vehicle split flow;
representing the total number of vehicles in the coverage distance corresponding to the shunting information board;
representing a shunt recommendation value;
the number of actual lanes of the coverage distance corresponding to the flow dividing information plate is shown.
The shunting correction process of the standard speed limit information and the predicted running time specifically comprises the following steps: dynamically adjusting vehicle density information corresponding to the coverage distance according to the vehicle split flow, and updating initial speed limit information according to the adjusted vehicle density information; and re-determining the standard speed limit information and the predicted running time according to the updated initial speed limit information to obtain the final standard speed limit information and the final predicted running time.
Example 2: a dynamic publishing system of highway incident information, which is used for realizing the dynamic publishing method of highway incident information recorded in embodiment 1, as shown in fig. 2, comprises an accident analysis module, a speed limit correction module, a shunt analysis module, a shunt correction module and an information publishing module.
The accident analysis module is used for determining the vehicle drainage speed according to the reported information of the traffic accident and the number of lanes at the accident; the speed limit analysis module is used for acquiring vehicle density information within the coverage distance corresponding to all the target information boards to determine the initial speed limit information of each target information board; the speed limit correction module is used for correcting the initial speed limit information of the current target information board by combining the initial speed limit information of the front target information board to obtain standard speed limit information and determining the predicted driving time of the current target information board according to the standard speed limit information and the coverage distance; the shunt analysis module is used for extracting target information boards with exits in the coverage distances of all the target information boards as shunt information boards and determining a shunt recommended value according to the comparison of shunt and non-shunt oil consumption information, driving time and driving distance; the shunt correction module is used for determining vehicle shunt flow according to the total number of vehicles, the number of actual lanes and the shunt recommended value of the coverage distance corresponding to the shunt information board, and performing shunt correction on the standard speed limit information and the predicted running time of the shunt information board according to the vehicle shunt flow to obtain final standard speed limit information and final predicted running time; the information publishing module is used for dynamically publishing information including event intervals, accumulated running time and standard speed limit information through the target information board, and the shunting information board also publishes shunting recommendation values.
The working principle is as follows: in the process of determining the standard speed limit information of the target information boards, the vehicle density information in the corresponding coverage distance of each target information board is independently considered, and the overall vehicle density condition of the road section between the target information boards and the traffic accident site is also considered, so that the standard speed limit information and the predicted driving time issued by each target information board are more accurate and reliable; in addition, the alternative routes which are selected to be continuously driven on the expressway and driven out at a high speed are compared according to the oil consumption information, the driving time and the driving distance, so that parameter data can be visually and accurately provided for drivers, the shunting of vehicles is facilitated, the road congestion degree caused by traffic accidents is reduced, and the driving cost is saved for shunting vehicles.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may 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, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The dynamic release method of the expressway event information is characterized by comprising the following steps of:
determining the drainage speed of the vehicle according to the reported information of the traffic accident and the number of lanes at the accident;
acquiring vehicle density information within the corresponding coverage distance of all target information boards, and determining initial speed limit information of each target information board;
correcting the initial speed limit information of the current target information board by combining the initial speed limit information of the front target information board to obtain standard speed limit information, and determining the predicted running time of the current target information board according to the standard speed limit information and the coverage distance;
extracting target message signs with exits in the coverage distances of all the target message signs as shunting message signs, and determining a shunting recommendation value according to the comparison of shunting and non-shunting fuel consumption information, driving time and driving distance;
determining the vehicle shunt flow according to the total number of vehicles, the number of actual lanes and the shunt recommended value of the coverage distance corresponding to the shunt information board, and performing shunt correction on the standard speed limit information and the predicted driving time of the shunt information board according to the vehicle shunt flow to obtain final standard speed limit information and final predicted driving time;
dynamically publishing information including event intervals, accumulated running time and standard speed limit information through a target information board, and publishing a shunt recommended value through a shunt information board;
the calculation formula of the shunt recommendation value is specifically as follows:
wherein η represents a shunt recommendation value; q g Representing the average fuel consumption of the road section between the branch outlet and the traffic accident; delta Q represents the average value of oil consumption of a road section between a traffic accident position and a confluence inlet; q f The average fuel consumption of a road section between the branch flow outlet and the confluence inlet is represented; t is a unit of g A predicted travel time representing an accumulation of links between the diversion port and the traffic accident; t is f Representing the total travel time of the section between the branch outlet and the confluence inlet; Δ T represents a travel time of a section between the traffic accident and the merging portal; l is g Representing a section length of a section between the outflow split port and the traffic accident; l is f A section length representing a section between the branch flow outlet and the confluence flow inlet; Δ L represents a link length of a link between the traffic accident site and the confluence entrance;
the calculation formula of the vehicle shunt capacity is specifically as follows:
wherein, K f Indicating a vehicle split flow; k represents the total number of vehicles in the corresponding coverage distance of the shunting intelligence board; eta chartIndicating a shunt recommended value; n is a radical of 0 The number of actual lanes of the coverage distance corresponding to the flow dividing information plate is shown.
2. The method for dynamically distributing highway event intelligence information according to claim 1, wherein the formula for calculating the vehicle displacement velocity is specifically as follows:
or the following steps:
wherein C represents a vehicle discharge speed; c 0 Representing the amount of vehicle flow in a unit time under normal conditions; n represents the number of lanes at the accident; and m represents the number of accident covered lanes.
3. The dynamic release method of highway event intelligence information according to claim 1, wherein the process of determining the initial speed limit information is specifically as follows:
determining an average vehicle distance according to the vehicle density information;
and the average vehicle distance is taken as the safe braking distance to represent the initial speed limit information of the highest running speed.
4. The dynamic release method of highway incident intelligence information according to claim 1, wherein the determination process of the standard speed limit information is specifically as follows:
carrying out interpolation processing on the speed limit information corresponding to the current target information board according to the initial speed limit information of the front target information board to obtain estimated speed limit information of the current target information board;
and taking the average value of the estimated speed limit information and the initial speed limit information of the current target information board as the standard speed limit information of the current target information board.
5. The dynamic publishing method of highway event information according to claim 1, wherein the shunting correction process of the standard speed limit information and the predicted travel time specifically comprises:
dynamically adjusting vehicle density information corresponding to the covering distance according to the vehicle split flow, and updating initial speed limit information according to the adjusted vehicle density information;
and re-determining the standard speed limit information and the predicted running time according to the updated initial speed limit information to obtain the final standard speed limit information and the final predicted running time.
6. Highway incident information dynamic release system, characterized by includes:
the accident analysis module is used for determining the vehicle drainage speed according to the reported information of the traffic accident and the number of lanes at the accident;
the speed limit analysis module is used for acquiring vehicle density information within the coverage distance corresponding to all the target information boards and determining the initial speed limit information of each target information board;
the speed limit correction module is used for correcting the initial speed limit information of the current target information board by combining the initial speed limit information of the front target information board to obtain standard speed limit information and determining the predicted driving time of the current target information board according to the standard speed limit information and the coverage distance;
the shunt analysis module is used for extracting target information boards with exits in the coverage distances of all the target information boards as shunt information boards and determining a shunt recommended value according to the comparison of shunt and non-shunt oil consumption information, driving time and driving distance;
the shunt correction module is used for determining vehicle shunt flow according to the total number of vehicles, the number of actual lanes and the shunt recommended value of the coverage distance corresponding to the shunt information board, and performing shunt correction on the standard speed limit information and the predicted running time of the shunt information board according to the vehicle shunt flow to obtain final standard speed limit information and final predicted running time;
the information publishing module is used for dynamically publishing information including event intervals, accumulated running time and standard speed limit information through a target information board, and the shunting information board also publishes a shunting recommendation value;
the calculation formula of the shunt recommendation value is specifically as follows:
wherein η represents a shunt recommendation value; q g Representing the average fuel consumption of the road section between the branch outlet and the traffic accident; delta Q represents the average value of oil consumption of a road section between a traffic accident position and a confluence inlet; q f The average fuel consumption of a road section between the branch flow outlet and the confluence flow inlet is represented; t is a unit of g A predicted travel time representing an accumulation of links between the diversion port and the traffic accident; t is f Representing the total travel time of the section between the branch outlet and the confluence inlet; Δ T represents a travel time of a section between the traffic accident and the merging portal; l is g Representing a section length of a section between the outflow split port and the traffic accident; l is a radical of an alcohol f A section length representing a section between the branch flow outlet and the confluence flow inlet; Δ L represents a link length of a link between the traffic accident site and the confluence entrance;
the calculation formula of the vehicle shunt capacity is specifically as follows:
wherein, K f Indicating a vehicle split flow; k represents the total number of vehicles in the corresponding coverage distance of the shunting intelligence board; eta represents a shunt recommendation value; n is a radical of 0 The number of actual lanes of the coverage distance corresponding to the flow dividing information plate is shown.
7. A computer terminal comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the method for dynamic distribution of highway event intelligence information according to any of claims 1-5 when executing the program.
8. A computer-readable medium on which a computer program is stored, said computer program being executable by a processor to implement the method of dynamic distribution of highway event intelligence information according to any one of claims 1-5.
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