Disclosure of Invention
The invention provides a roundabout road traffic early warning method, a system, terminal equipment and a storage medium, which are used for early warning when a vehicle enters a roundabout road based on driving state information of the vehicle and traffic information in the parallel direction and the vertical direction so as to at least solve the problems of complicated traffic at a roundabout road intersection, frequent vehicle accidents and the like.
According to an aspect of the disclosed embodiments, a roundabout road traffic early warning method is provided, including:
the method comprises the steps that after a target vehicle is detected to enter a roundabout road intersection, driving state information of the target vehicle is obtained;
acquiring first traffic information related to the target vehicle in a direction perpendicular to the direction of the rotary island road;
acquiring second traffic information related to the target vehicle in a direction parallel to the rotary island road; and the number of the first and second groups,
and predicting whether the target vehicle can safely run in the roundabout road or not based on the driving state information of the target vehicle, and the first traffic information and the second traffic information related to the target vehicle, and if not, sending a first early warning prompt to the target vehicle.
In one embodiment, the driving state information of the target vehicle includes a driving speed and a driving direction of the target vehicle; the first traffic information related to the target vehicle comprises positioning information of the target vehicle, other vehicles and pedestrians in the roundabout road, and first running data and first road condition data of the other vehicles in the roundabout road; the second traffic information related to the target vehicle includes second travel data and second road condition data of vehicles around the target vehicle.
In one embodiment, before the target vehicle is detected to enter the roundabout road intersection, the method further comprises the following steps:
judging whether a vehicle moves forward to the roundabout road intersection in a preset distance section between the vehicle and the roundabout road intersection, if so, judging the vehicle as a target vehicle, and sending a second early warning prompt to the target vehicle so that the target vehicle enters the roundabout road intersection based on the second early warning prompt.
In one embodiment, the method further comprises:
collecting historical driving data of the roundabout road; and the number of the first and second groups,
constructing a prediction model based on the historical driving data;
the predicting whether the target vehicle can safely travel in the roundabout road based on the driving state information of the target vehicle, the first traffic information and the second traffic information related to the target vehicle includes:
predicting, in the prediction model, whether the target vehicle can safely travel in the roundabout road based on the traveling state information of the target vehicle, the first traffic information and the second traffic information related to the target vehicle.
In one embodiment, the historical driving data of the roundabout road comprises driving state information of a plurality of sample vehicles, first traffic information related to the plurality of sample vehicles in a direction perpendicular to the roundabout road, and second traffic information related to the plurality of sample vehicles in a direction parallel to the roundabout road;
the building of the prediction model based on the historical driving data comprises the following steps:
respectively establishing mapping relations between the driving state information of the plurality of sample vehicles and the related first traffic information and second traffic information thereof; and constructing a prediction model based on the mapping relation.
According to another aspect of the embodiments of the present disclosure, there is provided a roundabout road traffic warning system, including:
the system comprises an acquisition module, a display module and a control module, wherein the acquisition module is used for acquiring the driving state information of a target vehicle after the target vehicle is detected to enter a roundabout road intersection;
the acquisition module is further configured to acquire first traffic information related to the target vehicle in a direction perpendicular to the roundabout road;
the acquisition module is further configured to acquire second traffic information related to the target vehicle in a direction parallel to the roundabout road; and the number of the first and second groups,
and the early warning module is set to predict whether the target vehicle can safely run in the roundabout road or not based on the driving state information of the target vehicle, the first traffic information and the second traffic information related to the target vehicle, and if not, a first early warning prompt is sent to the target vehicle.
In one embodiment, the driving state information of the target vehicle includes a driving speed and a driving direction of the target vehicle; the first traffic information related to the target vehicle comprises positioning information of the target vehicle, other vehicles and pedestrians in the roundabout road, and first running data and first road condition data of the other vehicles in the roundabout road; the second traffic information related to the target vehicle includes second travel data and second road condition data of vehicles around the target vehicle.
In one embodiment, the system further comprises:
and the judgment prompting module is set to judge whether a vehicle moves forwards towards the roundabout road intersection in a preset distance section between the judgment prompting module and the roundabout road intersection before the early warning module predicts whether the target vehicle can safely drive in the roundabout road, if so, the judgment prompting module judges the vehicle as the target vehicle and sends a second early warning prompt to the target vehicle so as to enable the target vehicle to enter the roundabout road intersection based on the second early warning prompt.
According to still another aspect of the embodiments of the present disclosure, there is provided a terminal device, including a memory and a processor, where the memory stores a computer program, and when the processor runs the computer program stored in the memory, the processor executes the roundabout road traffic warning method.
According to still another aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the processor executes the roundabout road traffic warning method.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
according to the roundabout road traffic early warning method provided by the embodiment of the disclosure, after a target vehicle is detected to enter a roundabout road intersection, the driving state information of the target vehicle is acquired; acquiring first traffic information of the target vehicle in a direction perpendicular to the direction of the rotary island road; acquiring second traffic information of the target vehicle in a direction parallel to the rotary island road; and predicting whether the target vehicle can safely run in the roundabout road or not based on the driving state information, the first traffic information and the second traffic information of the target vehicle, and if not, sending a first early warning prompt to the target vehicle. The embodiment of the disclosure performs early warning on the vehicle entering the roundabout road based on the driving state information of the vehicle and the traffic information in the parallel direction and the vertical direction, so as to at least solve the problems of complicated traffic, frequent vehicle accidents and the like at the intersection of the roundabout road.
Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the disclosure. The objectives and other advantages of the disclosure may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, specific embodiments of the present disclosure are described below in detail with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order; also, the embodiments and features of the embodiments in the present disclosure may be arbitrarily combined with each other without conflict.
In which the terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in the disclosed embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for the convenience of explanation of the present disclosure, and have no specific meaning in themselves. Thus, "module", "component" or "unit" may be used mixedly.
With the increase of motor vehicles and the complexity of the roundabout road sections, the traffic condition of the roundabout road section intersection becomes unreasonable, and when the roundabout road intersection is frequently entered, the entering vehicles do not avoid the motor vehicles which are already running in the roundabout, so that traffic accidents are frequent.
In the related technology, coil detectors are arranged at each entrance and a loop of a multi-path loop intersection; setting phase sequences of multiple roundabouts, wherein the self-adaptive traffic signal control method of the multiple roundabouts adopts a clockwise rotation-release type phase structure; according to the traffic flow data collected by the coil detector; predicting future traffic states of the roundabout in multiple steps according to the roundabout entrance and roundabout traffic flow state parameters acquired by the coil detector; establishing an optimized objective function, and solving to obtain the green light signal duration displayed at each phase of the roundabout; and coordinating the green light turn-on time of each entrance of the multi-way roundabout according to the phase lapping rule. The scheme collects traffic flow data, predicts the future traffic state and then controls traffic signals to ensure the driving safety of the roundabout intersection. However, in the related art, the future traffic state of the roundabout is predicted by collecting traffic flow data, the collected traffic flow data can only reflect the congestion degree of the roundabout road, and in the driving process of vehicles on the roundabout road, the driving state of the vehicles and the like are more considered, so that the related art obviously cannot perform good early warning on the safety state of the vehicles on the roundabout road except for the traffic congestion.
In order to solve the technical problem, an embodiment of the present disclosure provides a roundabout road traffic early warning scheme, where for a vehicle entering a roundabout road intersection, driving state information of the vehicle, first traffic information of the vehicle in a direction perpendicular to the roundabout road, and second traffic information of the vehicle in a direction parallel to the roundabout road are obtained, the vehicle enters the roundabout road to be safely driven based on the information, and a warning is performed on related vehicles, so as to achieve a purpose of predicting and preventing a roundabout road accident in advance.
Referring to fig. 1, fig. 1 is a schematic flow chart of a roundabout road traffic warning method according to an embodiment of the present disclosure, where the method includes steps S101 to S104.
In step S101, after it is detected that a target vehicle enters a roundabout road intersection, driving state information of the target vehicle is acquired.
The target vehicles are the vehicles which are detected by the system and initially enter the roundabout road intersection, namely, the vehicles are not the vehicles which are currently in the roundabout road, the number of the target vehicles can be one or multiple, and when multiple vehicles which run into the roundabout road intersection exist, the driving state information of each target vehicle is obtained, and each target vehicle is analyzed and early warned. The driving state information includes, but is not limited to, driving speed, driving direction, movement tendency, deviation data, kurtosis data, and the like of the target vehicle.
In step S102, first traffic information related to the target vehicle in a direction perpendicular to the roundabout road is acquired.
Specifically, a camera is arranged in a direction perpendicular to the ground of the roundabout road, that is, from the angle perpendicular to the ground, one or more cameras perpendicular to the ground are arranged, and first traffic information, which may be corresponding images or video clips, with the target vehicle a as a reference object view angle is recorded, the first traffic information includes but is not limited to physical positioning information of the target vehicle, vehicles and pedestrians in the roundabout road, and first driving data and first road condition data of the vehicles in the roundabout road, wherein the first driving data includes but is not limited to speed of the vehicles, image pixel data, trend motion data, skew data, kurtosis data, and the like; the first road condition data includes, but is not limited to, road smoothness, anomalies, faults, etc.
It can be understood that the first driving data and the first road condition data are mainly used for distinguishing from the second driving data and the second road condition data, wherein the information acquired in the parallel view and the information acquired in the vertical view may be different, relatively speaking, the surrounding road condition data acquired in the parallel view is more detailed, and the road condition data acquired in the vertical view is more macroscopic. Compared with the related art, the embodiment of the disclosure can further refine the driving state of the target vehicle at the roundabout road intersection by considering the road information of the target vehicle in the horizontal direction and the road information in the vertical direction, so as to further realize the early warning of the target vehicle and ensure the driving safety of the vehicle on the roundabout road.
In step S103, second traffic information related to the target vehicle in a direction parallel to the roundabout road is acquired.
Specifically, in the horizontal direction, when a target vehicle a is about to enter the roundabout road intersection and after the target vehicle a enters the roundabout road intersection, the condition of the surrounding vehicles within a parallel view angle a, that is, second traffic information of the target vehicle, is recorded, the second traffic information of the target vehicle includes second driving data and second road condition data of the surrounding vehicles of the target vehicle, and the second driving data of the surrounding vehicles includes moving driving data and moving trend data of the vehicles within other roundabout around a.
In step S104, it is predicted whether the target vehicle can safely travel on the roundabout road based on the traveling state information of the target vehicle, the first traffic information and the second traffic information related to the target vehicle, and if not, step S105 is executed, if yes, the method ends, the target vehicle can safely travel on the roundabout road based on the current traveling state information, the above steps can be executed again to continuously determine the state of the target vehicle, and step S105 is executed when it is predicted that the target vehicle may not safely travel.
In step S105, a first warning prompt is issued to the target vehicle.
Specifically, the driving trend of the current surrounding vehicles of the target vehicle and the current road information of the roundabout road can be obtained through analysis of the obtained first traffic information and the obtained second traffic information of the current target vehicle, the driving trend of the target vehicle can be obtained by combining the driving state information of the current target vehicle, whether the target vehicle can safely drive in the roundabout road or not based on the current driving state of the target vehicle is judged, if the target vehicle cannot safely drive in the roundabout road, a first early warning prompt is sent to the target vehicle, wherein the first early warning prompt can include operations of prompting the target vehicle to decelerate, turn and the like, so that the traffic problem in the roundabout can be avoided in advance.
It can be understood that under the specific scene of the roundabout road condition, certain safety index requirements are required, for example, the driving speed of the vehicle and the radius of the roundabout are set, and under the different time scene environments, the requirements for driving the vehicle into the roundabout to drive the vehicle may be different. The first early warning prompt sent by the system can be prompted according to the content.
In some embodiments, in order to improve the driving experience of the user and understand the overall traffic condition, the user performs autonomous operation based on the information, the first traffic information and the second traffic information may be collected and sent to the user interface as response data, the response data includes the actions of other vehicles in the roundabout scene and various action possibilities, action trend possibilities, image pixels and other data, and the user may perform operations such as deceleration or steering according to the response data.
As mentioned above, the driving state information of the target vehicle in the present embodiment includes the driving speed and the driving direction of the target vehicle; the first traffic information related to the target vehicle comprises positioning information of the target vehicle, other vehicles and pedestrians in the roundabout road, and first running data and first road condition data of the other vehicles in the roundabout road; the second traffic information related to the target vehicle includes second travel data and second road condition data of vehicles around the target vehicle.
In some embodiments, the driving state information, the driving data, and the road condition data may further include other data information, which is not described herein again.
Referring to fig. 2, fig. 2 is a schematic flow chart of another roundabout road traffic warning method according to an embodiment of the present disclosure, based on the previous embodiment, in this embodiment, a target vehicle is quickly positioned and subjected to warning prompt by a preset distance segment before the vehicle enters the roundabout road intersection, so that the vehicle performs preparation work before entering the roundabout road intersection, so as to further improve the security of the roundabout road segment with complicated road conditions, specifically, before it is detected that the target vehicle enters the roundabout road intersection (step S101), the method further includes step S201 and step S202.
In step S201, it is determined whether there is a vehicle moving forward toward the roundabout road intersection in a preset distance segment from the roundabout road intersection, if yes, step S202 is executed, otherwise, the process is ended.
In step S202, the vehicle is determined as a target vehicle, and a second warning prompt is sent to the target vehicle, so that the target vehicle enters the roundabout road intersection based on the second warning prompt.
It should be noted that, a person skilled in the art can adaptively set the preset distance segment according to the prior art and the actual situation, for example, when the target vehicle enters 50-100 meters of the roundabout road intersection, a second warning prompt is sent to the target vehicle.
The second early warning prompt for example sends a prompt to the target vehicle to enter the roundabout intersection, suggests deceleration driving and the like, starts to enter a recording stage, and records data information such as the vehicle speed and the like of the vehicle. In some embodiments, the driving information and the surrounding environment information of the current vehicle can be collected at the same time, and a second early warning prompt is sent according to the driving information and the surrounding environment information of the current vehicle.
Referring to fig. 3, fig. 3 is a schematic flow chart of another roundabout road traffic warning method according to an embodiment of the present disclosure, and on the basis of the previous embodiment, the present embodiment can effectively improve the accuracy of analyzing and predicting the driving safety state of the target vehicle by constructing a prediction model and predicting the driving state of the target vehicle based on the prediction model, thereby further ensuring the safety of the roundabout road. Specifically, the method includes steps S301 and S302 in addition to steps S101 to S104, and step S104 is further divided into step S104 a.
In step S301, historical driving data of the roundabout road is collected;
in step S302, a prediction model is constructed based on the historical driving data;
the predicting whether the target vehicle can safely travel in the roundabout road based on the driving state information of the target vehicle, the first traffic information and the second traffic information related to the target vehicle (step S104) includes:
in step S104a, it is predicted in the prediction model whether the target vehicle can safely travel in the roundabout road based on the traveling state information of the target vehicle, the first traffic information and the second traffic information related to the target vehicle.
Compared with the previous embodiment, the prediction model is established by using the historical driving data on the roundabout road, and the target vehicle is predicted based on the historical data and the current data, so that the prediction accuracy can be further improved.
Further, the air conditioner is provided with a fan,
historical driving data of the roundabout road comprise driving state information of a plurality of sample vehicles, first traffic information related to the sample vehicles in a direction perpendicular to the roundabout road and second traffic information related to the sample vehicles in a direction parallel to the roundabout road;
the building of the prediction model based on the historical driving data (step S302), as shown in fig. 4, includes the following steps:
in step S302a, respectively establishing a mapping relationship between the driving state information of the plurality of sample vehicles and the related first traffic information and second traffic information thereof; and the number of the first and second groups,
in step S302b, a prediction model is constructed based on the mapping relationship.
In this embodiment, when various data are acquired with a plurality of sample vehicles B as reference objects, various driving and trend motion data of the vehicles B are taken as participant own data, and driving information, road condition information, and actions and various action possibilities of surrounding pedestrians, trend data, and video image pixel data of other vehicles in the roundabout and vehicles outside the roundabout that are not in the video but are related to driving are taken as response data. After collecting these data, aggregate them into a plurality of subsets of response data, and correspond one-to-one with participant's own data, form a map to form statistical data, and after collecting data of vehicle B, and so on, collect data of vehicle C, data of D, data of pedestrians, and so on. More effective data are collected to form more data subsets and mapping to establish a prediction model of the roundabout for behavior prediction of vehicles and surrounding pedestrians in the scene, and the prediction based on the model plays a role in warning target vehicles running into the roundabout road intersection in advance.
In some embodiments, the prediction model may be added with weather and month of time correspondence data, and the model is created based on the above statistical data. The data not only comprises data of a vertical direction view angle, but also comprises data of a horizontal direction view angle, is covered comprehensively, and corresponds to weather humidity, temperature, time month and the like, so that the same participant forms more mappings and forms a subset of more response data.
Based on the same technical concept, the embodiment of the present disclosure correspondingly provides a roundabout road traffic early warning system, as shown in fig. 5, the system includes:
the system comprises anacquisition module 51, a control module and a display module, wherein the acquisition module is set to acquire the driving state information of a target vehicle after the target vehicle is detected to enter a roundabout road intersection;
the obtainingmodule 51 is further configured to obtain first traffic information related to the target vehicle in a direction perpendicular to the roundabout road;
the obtainingmodule 51 is further configured to obtain second traffic information related to the target vehicle in a direction parallel to the roundabout road; and the number of the first and second groups,
and theearly warning module 52 is configured to predict whether the target vehicle can safely run in the roundabout road based on the driving state information of the target vehicle, the first traffic information and the second traffic information related to the target vehicle, and if not, send a first early warning prompt to the target vehicle.
In one embodiment, the driving state information of the target vehicle includes a driving speed and a driving direction of the target vehicle; the first traffic information related to the target vehicle comprises positioning information of the target vehicle, other vehicles and pedestrians in the roundabout road, and first running data and first road condition data of the other vehicles in the roundabout road; the second traffic information related to the target vehicle includes second travel data and second road condition data of vehicles around the target vehicle.
In one embodiment, the system further comprises:
a judgment prompting module configured to, before the early warning module predicts whether the target vehicle can safely travel in the roundabout road,
judging whether a vehicle moves forward to the roundabout road intersection in a preset distance section between the vehicle and the roundabout road intersection, if so, judging the vehicle as a target vehicle, and sending a second early warning prompt to the target vehicle so that the target vehicle enters the roundabout road intersection based on the second early warning prompt.
In one embodiment, the system further comprises:
the data acquisition module is used for acquiring historical driving data of the roundabout road;
a model construction module arranged to construct a prediction model based on the historical driving data;
theearly warning module 52 is specifically configured to predict whether the target vehicle can safely travel in the roundabout road in the prediction model based on the driving state information of the target vehicle, and the first traffic information and the second traffic information related to the target vehicle.
In one embodiment, the historical driving data of the roundabout road comprises driving state information of a plurality of sample vehicles, first traffic information related to the plurality of sample vehicles in a direction perpendicular to the roundabout road, and second traffic information related to the plurality of sample vehicles in a direction parallel to the roundabout road;
the model construction module is specifically configured to respectively establish mapping relations between the driving state information of the plurality of sample vehicles and the first traffic information and the second traffic information of the sample vehicles; and constructing a prediction model based on the mapping relation.
Based on the same technical concept, the embodiment of the present disclosure correspondingly provides a terminal device, as shown in fig. 6, the terminal device includes amemory 61 and aprocessor 62, thememory 61 stores a computer program, and when theprocessor 62 runs the computer program stored in thememory 61, theprocessor 62 executes the roundabout road traffic warning method.
Based on the same technical concept, the embodiment of the present disclosure correspondingly provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the processor executes the roundabout road traffic warning method.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present disclosure, and not for limiting the same; while the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.