CN112466157B - Traffic accident early warning method and device - Google Patents

Traffic accident early warning method and device Download PDF

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Publication number
CN112466157B
CN112466157B CN202011339558.4A CN202011339558A CN112466157B CN 112466157 B CN112466157 B CN 112466157B CN 202011339558 A CN202011339558 A CN 202011339558A CN 112466157 B CN112466157 B CN 112466157B
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vehicle
information
lane
path
obtaining
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CN112466157A (en
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卢川文
汤伟方
李刚
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China Information Consulting and Designing Institute Co Ltd
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China Information Consulting and Designing Institute Co Ltd
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
    • G08G1/0125—Traffic data processing
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/167—Driving aids for lane monitoring, lane changing, e.g. blind spot detection

Abstract

The invention discloses a traffic accident early warning method and a device, wherein the method comprises the steps of obtaining first vehicle information and second vehicle information; obtaining first path information and first vehicle speed information of a first vehicle; judging whether the first vehicle needs lane changing or not; when lane changing is needed, first position information of a first vehicle is obtained; obtaining second path information and second vehicle speed information of a second vehicle; taking the first path information and the first vehicle speed information as first input information, taking the second path information and the second vehicle speed information as second input information, and inputting the second path information and the second vehicle speed information into a training model; obtaining output information of a training model; and determining whether first early warning information is obtained or not according to the output information, wherein the first early warning information is used for reminding the first vehicle of forbidding lane changing. The invention solves the technical problems that the real-time monitoring of moving vehicles and the acquisition of traffic abnormal condition information are not timely, and the real-time, accurate and effective early warning of sudden accidents can not be realized in the prior art.

Description

Traffic accident early warning method and device
Technical Field
The invention relates to the technical field of data analysis, in particular to a traffic accident early warning method and device.
Background
With the rapid development of national economy, the expressway has eight reaches, and the quantity of automobiles is more and more, and because the automobiles on the highway in China have high running density at present, the traffic jam is serious and the traffic accidents are frequent. Recently, casualties, traffic jams, environmental pollution, and economic loss caused by traffic accidents are rapidly increasing with the increase of travel vehicles. Therefore, the research of the fast and effective real-time traffic accident early warning method is more and more concerned by people.
In the past, the traffic accident prediction is mostly based on simple historical traffic accident data, the real-time traffic factor is not considered, and the traffic accident prediction has the inevitable defects of poor prediction accuracy and the like. The technical problems that real-time monitoring of moving vehicles, acquisition of abnormal traffic condition information is not timely, real-time, accurate and effective early warning of sudden accidents cannot be achieved and the like exist in the prior art.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to solve the technical problem of providing a traffic accident early warning method and device aiming at the defects of the prior art.
In order to solve the above technical problem, in a first aspect, an embodiment of the present invention provides a traffic accident early warning method, where the method includes the following steps:
step S100: obtaining first vehicle information, the first vehicle being located on a first lane; the first vehicle is a vehicle passing through a certain section at a certain time point, and the first vehicle information comprises the running condition and license plate information of the first vehicle; the first vehicle runs in the first lane, and the first vehicle information is obtained, so that a foundation is laid for subsequently obtaining information such as the speed and the path of the first vehicle, and a foundation is laid for subsequently carrying out traffic accident early warning.
Step S200: obtaining second vehicle information, wherein the second vehicle is located in a second lane, and the second lane is a lane adjacent to the first lane; the second vehicle is a vehicle that passes through a certain section at a certain point in time simultaneously with the first vehicle, the second vehicle traveling on the second lane; the traffic accident frequently occurs between vehicles in adjacent lanes, so that the second vehicle information is obtained, and a foundation is laid for early warning of the traffic accident.
Step S300: obtaining first path information and first vehicle speed information of the first vehicle; the first path information is the running path information of the first vehicle when the first vehicle passes through the section, and comprises information about whether lane changing is needed, whether the first vehicle runs straight and whether the first vehicle needs to turn; the first vehicle speed is vehicle speed information of the first vehicle when the first vehicle runs on the first lane; the first path information and the first vehicle speed information are obtained and are analyzed and compared with the information of the vehicles running on the second lane, so that the technical purposes of effectively early warning the occurrence of traffic accidents and carrying out emergency treatment according to the path information and the vehicle speed information are achieved.
Step S400: judging whether the first vehicle needs lane changing or not according to the first path information; and early warning or prompting is carried out on vehicles in adjacent lanes according to whether lane changing is needed or not according to the judgment result, so that the technical aims of accurately pre-judging the occurrence of traffic accidents and early warning are achieved.
Step S500: when the first vehicle needs to change lanes, obtaining first position information of the first vehicle; the method lays a foundation for sending prompt and accurate early warning information to adjacent lanes subsequently, and achieves the technical purpose of accurate early warning.
Step S600: obtaining second path information and second vehicle speed information of the second vehicle; the second path information is the running path information of the second vehicle when passing through the section, and comprises information about whether lane changing is needed, whether the second vehicle is going straight and whether the second vehicle needs to turn; the second vehicle speed is the vehicle speed information when the second vehicle runs on the second lane; by obtaining the second path information and the second vehicle speed information, the vehicle information running on the adjacent lane is analyzed and compared, so that the technical aims of effectively early warning the occurrence of traffic accidents and carrying out emergency measures according to the path information and the vehicle speed information are achieved.
Step S700: taking the first path information and the first vehicle speed information as first input information, taking the second path information and the second vehicle speed information as second input information, and inputting the first input information and the second input information into a training model;
step S800: obtaining output information of the training model, wherein the output information comprises a first output result and a second output result, the first output result is a result that the first vehicle can change lanes, and the second output result is a result that the first vehicle cannot change lanes; if the first vehicle can change the lane, the first output result is obtained, and if the first vehicle cannot change the lane, the second output result is obtained, so that whether the first vehicle can change the lane or not is accurately judged, and the early warning accuracy of the early warning system is improved.
Step S900: and determining whether first early warning information is obtained or not according to the first output result and the second output result, wherein the first early warning information is used for reminding the first vehicle of forbidding lane changing. By acquiring the first early warning information, the traffic accident can be early warned in advance, and the technical purpose of effectively preventing accidents is achieved.
With reference to the first aspect, in an implementation manner, in step S900, if the output information is the first output result, the method includes the following steps:
step S901 a: obtaining first prompt information, wherein the first prompt information is used for reminding the second vehicle that the first vehicle is about to change lanes;
step S902 a: obtaining second vehicle speed control information according to the first prompt information, wherein the second vehicle speed control information is used for controlling the speed of the second vehicle; the first output result is information that the first vehicle can change lanes, on the premise of obtaining the first output result, obtaining prompt information for prompting that the first vehicle needs to change lanes, prompting and early warning a second vehicle in driving, obtaining second vehicle speed control information, and controlling the speed of the second vehicle; therefore, the technical effect of effectively preventing traffic accidents by controlling the speed of the vehicle and early warning in time is effectively achieved.
If the output information is the second output result, the method comprises the following steps:
step S901 b: acquiring first early warning information;
step S902 b: obtaining first alternative path information according to the first early warning information, wherein the first alternative path information is different from the first path information; the second output result is result information that the first vehicle cannot change lanes, so that the first early warning information is obtained and used for early warning of possible accidents, the first alternative path information is another scheme path of the first vehicle when the first vehicle runs to reach the destination, and the traffic accidents are prevented by adjusting the running path of the first vehicle. By early warning and adjusting the driving path, the traffic accident can be accurately pre-judged through the path, and the traffic accident can be avoided by early warning and adjusting the path.
With reference to the first aspect, in an implementation manner, S600 further includes:
step S601: judging whether the second vehicle needs lane changing or not according to the second path information and the second vehicle speed information of the second vehicle;
step S602: if the second vehicle needs lane changing, second predicted position information after the second vehicle changes lanes is obtained;
step S603: obtaining real-time vehicle speed information of the first vehicle when the second vehicle needs to change lanes;
step S604: according to the real-time speed information of the first vehicle, obtaining first predicted position information of the first vehicle after the second vehicle changes the lane;
step S605: determining whether second early warning information is obtained or not according to the first predicted position information and the second predicted position information, wherein the second early warning information is used for reminding the first vehicle and the second vehicle to adjust the driving speed and the driving path; the technical effects that the vehicle distance is judged according to the vehicle speed and the path of the vehicle in the same section, so that the occurrence of a traffic accident is accurately predicted and early warning is performed in advance, and the accident is avoided by taking corresponding measures are achieved.
The S605 further includes:
step S6051: if the second predicted position information is behind the first predicted position information, second prompt information is obtained and used for reminding the second vehicle to control the speed;
step S6052: if the second predicted position information is the same as the first predicted position information or is before the first position information, second early warning information is obtained;
step S6053: and adjusting the path and the speed of the first vehicle and/or the second vehicle according to the second early warning information. By obtaining the second prompt information and the second early warning information, the technical effects of accurately pre-judging the occurrence of the traffic accident and early warning by judging the vehicle distance and avoiding the occurrence of the accident by taking corresponding measures are achieved.
With reference to the first aspect, in an implementation manner, the S6053 further includes:
step S60531: obtaining a preset vehicle distance threshold value; the preset vehicle distance threshold value is a vehicle distance index which is obtained by calculating first vehicle speed information and running path information and used for judging whether the vehicle distance between the first vehicle and a third vehicle can enable the second vehicle to safely change lanes or not; the third vehicle is a vehicle which passes through a certain section at a certain time point simultaneously with the second vehicle and is used for detecting whether safe lane changing can be carried out during the running process of the second vehicle.
Step S60532: judging whether the distance between the first vehicle and the third vehicle is within the preset distance threshold value;
step S60533: and if the distance between the first vehicle and the third vehicle is within the preset distance threshold value, obtaining third reminding information, wherein the third reminding information is used for reminding the second vehicle of forbidding lane changing. By obtaining the third reminding information, the technical effects of judging the vehicle distance through the vehicle speed and the path of the vehicle in the same section so as to accurately pre-judge the occurrence of a traffic accident and early warn in advance and avoiding the occurrence of the accident by taking corresponding measures are achieved.
Step S60534: and if the distance between the first vehicle and the third vehicle is beyond the preset threshold value, obtaining fourth reminding information, wherein the fourth reminding information is used for reminding the first vehicle of accelerating. By obtaining the fourth reminding information, the safe driving of the vehicle is further ensured, and the technical purpose of accurately early warning traffic accidents is achieved.
With reference to the first aspect, in an implementation manner, in step S700, the training model is obtained by training multiple sets of training data, where each set of training data in the multiple sets of training data includes: the first input information, the second input information, and identification information for identifying whether the first vehicle can change lanes; under the condition of obtaining the first path information and the first vehicle speed information, and the second path information and the second vehicle speed information, if the current running path and the vehicle speed of the first vehicle can ensure that the second vehicle can run safely under the current path and the vehicle speed, the training model can output the information of whether the first vehicle can change the lane, the information of whether the first vehicle can change the lane output by the training model is checked through the information of whether the first vehicle can change the lane, if the information of whether the first vehicle can change the lane is consistent with the information of whether the first vehicle can change the lane, the supervised learning of the training data is finished, and the supervised learning of the next group of training data is carried out; and if the output information of whether the first vehicle can change the lane is inconsistent with the identified information of whether the first vehicle can change the lane, adjusting the training model by the training model, and performing supervised learning of the next group of training data after the training model reaches the expected accuracy. The training model is continuously corrected and optimized through the training data, the accuracy of the training model for processing the data is improved through the process of supervision and learning, the information whether the first vehicle can change the lane is accurate, and the technical purpose of improving the accuracy and the efficiency of traffic accident early warning is achieved through accurately evaluating the information whether the first vehicle can change the lane.
In a second aspect, an embodiment of the present invention provides a traffic accident warning device, where the device includes:
a first obtaining unit, configured to obtain first vehicle information, where the first vehicle is located on a first lane;
a second obtaining unit, configured to obtain second vehicle information, where the second vehicle is located in a second lane, where the second lane is a lane adjacent to the first lane;
a third obtaining unit configured to obtain first path information and first vehicle speed information of the first vehicle;
the first judging unit is used for judging whether the first vehicle needs lane changing or not according to the first path information;
a fourth obtaining unit configured to obtain first position information of the first vehicle when the first vehicle needs to change lanes;
a fifth obtaining unit configured to obtain second path information and second vehicle speed information of the second vehicle;
a first input unit, configured to use the first path information and the first vehicle speed information as first input information, use the second path information and the second vehicle speed information as second input information, and input the first input information and the second input information into a training model, where the training model is obtained by training multiple sets of training data, and each set of training data in the multiple sets of training data includes: the first input information, the second input information and identification information for identifying whether the first vehicle can change lanes;
a sixth obtaining unit, configured to obtain output information of the training model, where the output information includes a first output result and a second output result, where the first output result is a result that the first vehicle can change lanes, and the second output result is a result that the first vehicle cannot change lanes;
a seventh obtaining unit, configured to determine whether to obtain first warning information according to the first output result and the second output result, where the first warning information is used to remind the first vehicle to prohibit lane change.
With reference to the second aspect, in one implementation manner, the apparatus further includes:
an eighth obtaining unit, configured to obtain first prompt information if the output information is the first output result, where the first prompt information is used to remind the second vehicle that the first vehicle is about to change lanes;
a ninth obtaining unit, configured to obtain second vehicle speed control information according to the first prompt information, where the second vehicle speed control information is used to control a vehicle speed of the second vehicle.
A tenth obtaining unit, configured to obtain first warning information if the output information is the second output result;
an eleventh obtaining unit, configured to obtain first alternative path information according to the first early warning information, where the first alternative path information is different from the first path information.
With reference to the second aspect, in one implementation manner, the apparatus further includes:
a second determination unit configured to determine whether the second vehicle needs to change lanes according to second path information and second vehicle speed information of the second vehicle;
a twelfth obtaining unit configured to obtain second predicted position information after the second vehicle changes lanes if the second vehicle needs to change lanes;
a thirteenth obtaining unit, configured to obtain real-time vehicle speed information of the first vehicle when the second vehicle needs to change lanes;
a fourteenth obtaining unit, configured to obtain first predicted position information of the first vehicle after the second vehicle changes lanes according to real-time vehicle speed information of the first vehicle;
a fifteenth obtaining unit, configured to determine whether to obtain second warning information according to the first predicted position information and the second predicted position information, where the second warning information is used to remind the first vehicle and the second vehicle to adjust driving speed and path.
A sixteenth obtaining unit, configured to obtain second prompt information if the second predicted position information is after the first predicted position information, where the second prompt information is used to prompt the second vehicle to control a vehicle speed;
a seventeenth obtaining unit configured to obtain second warning information if the second predicted position information is the same as or before the first predicted position information;
and the first adjusting unit is used for adjusting the path and the speed of the first vehicle and/or the second vehicle according to the second early warning information.
With reference to the second aspect, in one implementation manner, the apparatus further includes:
an eighteenth obtaining unit configured to obtain a predetermined vehicle distance threshold value;
a third judging unit, configured to judge whether a vehicle distance between the first vehicle and a third vehicle is within the predetermined vehicle distance threshold;
a nineteenth obtaining unit, configured to obtain third reminding information if a vehicle distance between the first vehicle and the third vehicle is within the predetermined vehicle distance threshold, where the third reminding information is used to remind the second vehicle to prohibit lane changing;
a twentieth obtaining unit, configured to obtain fourth reminding information if the distance between the first vehicle and the third vehicle is outside the predetermined distance threshold, where the fourth reminding information is used to remind the first vehicle of accelerating.
In a third aspect, an embodiment of the present invention further provides a traffic accident warning device, where the device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the method according to the first aspect when executing the program.
Has the advantages that:
1. the invention adopts the technical scheme that the path information and the speed information of the first vehicle and the path information and the speed information of the second vehicle are input into a training model, so that whether the first vehicle can change lanes or not is output; the training model is a machine learning model, and the machine learning model can continuously learn through a large amount of data so as to continuously correct the model and finally obtain satisfactory experience to process other data; each set of training data in the plurality of sets of training data comprises: the first input information, the second input information and identification information for identifying whether the first vehicle can change lanes; and through multiple training, accurate information whether the first vehicle can change the lane is obtained.
2. The invention can judge the vehicle distance through the vehicle speed and the path of the vehicle in the same section, thereby accurately pre-judging the occurrence of traffic accidents, giving early warning, and avoiding the occurrence of accidents through corresponding measures.
Drawings
The foregoing and/or other advantages of the invention will become further apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic flow chart of a traffic accident warning method according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a method for preventing a traffic accident by controlling a vehicle speed according to an embodiment of the present invention;
fig. 3 is a schematic flow chart illustrating a method for preventing a traffic accident by changing a driving route according to an embodiment of the present invention;
fig. 4 is a schematic flow chart illustrating the process of obtaining the second warning information in the traffic accident warning method according to the embodiment of the present invention;
fig. 5 is a schematic flow chart illustrating a process of adjusting the paths and speeds of the first vehicle and the second vehicle according to the second warning information in the traffic accident warning method according to the embodiment of the present invention;
fig. 6 is a schematic flow chart illustrating the process of obtaining the third reminding information and the fourth reminding information in the traffic accident early warning method according to the embodiment of the present invention;
fig. 7 is a schematic structural diagram of a traffic accident warning device according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an exemplary electronic device according to an embodiment of the present invention.
Description of reference numerals: a first obtaining unit 11, a second obtaining unit 12, a third obtaining unit 13, a first judging unit 14, a fourth obtaining unit 15, a fifth obtaining unit 16, a first input unit 17, a sixth obtaining unit 18, a seventh obtaining unit 19, a bus 300, a receiver 301, a processor 302, a transmitter 303, a memory 304, and a bus interface 306.
Detailed Description
Example one
As shown in fig. 1, an embodiment of the present invention provides a traffic accident early warning method and apparatus, wherein the method includes:
step S100: obtaining first vehicle information, the first vehicle being located on a first lane;
specifically, the first vehicle is a vehicle passing through a certain section at a certain time point, and the first vehicle information including information such as a running condition and license plate information of the first vehicle is obtained from a sensor mounted on the vehicle and road monitoring. The first vehicle travels in the first lane.
Step S200: obtaining second vehicle information, wherein the second vehicle is located in a second lane, and the second lane is a lane adjacent to the first lane;
specifically, the second vehicle information is obtained from a vehicle sensor and road monitoring, the second vehicle being a vehicle that passes through a certain section at a certain time point simultaneously with the first vehicle, the second vehicle traveling on the second lane, the second lane being a lane adjacent to the first lane.
Step S300: obtaining first path information and first vehicle speed information of the first vehicle;
specifically, the first path information and the first vehicle speed information are obtained from a navigation system terminal of the first vehicle and an output end of a vehicle speed sensor, and the first path information of the first vehicle is traveling path information of the first vehicle when passing through the section, and includes information such as whether lane changing is required, whether straight traveling is required, whether turning is required, and the like. The first vehicle speed is vehicle speed information of the first vehicle when the first vehicle runs on the first lane.
Step S400: judging whether the first vehicle needs lane changing or not according to the first path information;
specifically, after the first path information is obtained from a navigation system terminal of the vehicle, whether the first vehicle needs lane changing is judged from the path information of the vehicle, so that the vehicle in the adjacent lane is warned or prompted according to whether the lane changing is needed.
Step S500, when the first vehicle needs to change lanes, obtaining first position information of the first vehicle;
specifically, when the information that the first vehicle needs to change lanes is obtained from the first path information, the position information of the first vehicle at that time is obtained from the positioning system terminal of the first vehicle.
Step S600: obtaining second path information and second vehicle speed information of the second vehicle;
specifically, the second path information and the second vehicle speed information are obtained by a navigation system terminal of the second vehicle and an output end of a vehicle speed sensor, and the second path information of the second vehicle is the traveling path information of the second vehicle when passing through the section, and includes information such as whether lane change is needed, whether straight traveling is needed, whether turning is needed, and the like. The second vehicle speed is vehicle speed information when the second vehicle is traveling on the second lane.
Step S700: using the first path information and the first vehicle speed information as first input information, using the second path information and the second vehicle speed information as second input information, and inputting the first input information and the second input information into a training model, wherein the training model is obtained by training a plurality of sets of training data, and each set of training data in the plurality of sets includes: the first input information, the second input information and identification information for identifying whether the first vehicle can change lanes;
specifically, the identification information for identifying whether the first vehicle can make a lane change is accurate information about whether the first vehicle can make a lane change. The training model is a machine learning model, and the machine learning model can continuously learn through a large amount of data, further continuously correct the model, and finally obtain satisfactory experience to process other data.
Further, the machine learning model is obtained by training a plurality of sets of training data, and the process of training the machine learning model by the training data is essentially a process of supervised learning. Each of the plurality of sets of training data comprises: the first input information, the second input information, and identification information for identifying whether the first vehicle can change lanes; under the condition of obtaining the first path information and the first vehicle speed information, and the second path information and the second vehicle speed information, if the current running path and the vehicle speed of the first vehicle can ensure that the second vehicle can run safely under the current path and the vehicle speed, the machine learning model outputs the information of whether the first vehicle can change the lane, the information of whether the first vehicle can change the lane output by the machine learning model is checked through the information of whether the first vehicle can change the lane, if the output information of whether the first vehicle can change the lane is consistent with the information of whether the first vehicle can change the lane, the data supervision learning is finished, and then the next group of data supervision learning is carried out; and if the output information of whether the first vehicle can change the lane is inconsistent with the identified information of whether the first vehicle can change the lane, adjusting the machine learning model by the machine learning model, and performing supervised learning of the next group of data after the machine learning model reaches the expected accuracy.
Step S800: obtaining output information of the training model, wherein the output information comprises a first output result and a second output result, the first output result is a result that the first vehicle can change lanes, and the second output result is a result that the first vehicle cannot change lanes;
specifically, the training model continuously corrects data information through supervised learning to obtain more accurate information about whether the first vehicle can change lanes, so that whether the first vehicle can change lanes is judged through the model, the first output result is obtained if the first vehicle can change lanes, and the second output result is obtained if the first vehicle cannot change lanes.
Step S900: and determining whether first early warning information is obtained or not according to the first output result and the second output result, wherein the first early warning information is used for reminding the first vehicle of forbidding lane changing.
Specifically, a first output result output by the training model is that the first vehicle can change the lane, a second output result is that the first vehicle cannot change the lane, and when the output result is the second output result, the first early warning information is obtained, and the first early warning information is used for early warning the first vehicle to prompt that the first vehicle cannot change the lane.
As shown in fig. 2, in order to avoid a traffic accident by controlling a vehicle speed, in step S900 according to an embodiment of the present invention, if the output information is the first output result, the method further includes:
step S901 a: obtaining first prompt information, wherein the first prompt information is used for reminding the second vehicle that the first vehicle is about to change lanes;
step S902 a: and obtaining second vehicle speed control information according to the first prompt information, wherein the second vehicle speed control information is used for controlling the speed of the second vehicle.
Specifically, the first output result is information that the first vehicle can change lanes, and on the premise that the first output result is obtained, prompt information for prompting that the first vehicle needs to change lanes is obtained to prompt and warn a second vehicle in driving, and the second speed control information is obtained to control the speed of the second vehicle.
As shown in fig. 3, in order to avoid a traffic accident by changing a driving route, in step S900 according to an embodiment of the present invention, if the output information is the second output result, the method further includes:
step S901 b: acquiring first early warning information;
step S902 b: and obtaining first alternative path information according to the first early warning information, wherein the first alternative path information is different from the first path information.
Specifically, the second output result is result information that the first vehicle cannot change lanes, so that the first warning information is obtained and used for performing early warning on a possible accident, the first alternative path information is another scheme path where the first vehicle travels to reach the destination, and the occurrence of a traffic accident is effectively prevented by adjusting the travel path of the first vehicle.
As shown in fig. 4, in order to avoid a traffic accident by changing a travel path, step S600 according to an embodiment of the present invention further includes:
step S601: judging whether the second vehicle needs lane changing or not according to the second path information and the second vehicle speed information of the second vehicle;
step S602: if the second vehicle needs lane changing, second predicted position information after the second vehicle changes lanes is obtained;
step S603: obtaining real-time vehicle speed information of the first vehicle when the second vehicle needs to change lanes;
step S604: according to the real-time speed information of the first vehicle, obtaining first predicted position information of the first vehicle after the second vehicle changes the lane;
step S605: and determining whether second early warning information is obtained or not according to the first predicted position information and the second predicted position information, wherein the second early warning information is used for reminding the first vehicle and the second vehicle to adjust the driving speed and the driving path.
Specifically, second path information and second vehicle speed information of the second vehicle are obtained through a navigation system terminal and a speed sensor of the second vehicle, whether the second vehicle needs lane changing or not is obtained through the path information of the second vehicle, if the second vehicle needs lane changing, predicted position information after the second vehicle changes lanes is obtained, the vehicle speed information of the first vehicle on an adjacent lane and the predicted position information of the first vehicle after the second vehicle changes lanes are obtained at the same time, the possibility of traffic accidents is determined through judging and analyzing the predicted position information of the two vehicles after the second vehicle changes lanes, and then second early warning information is obtained and used for reminding the first vehicle and the second vehicle to adjust the driving speed and the path.
As shown in fig. 5, in order to determine whether to obtain the second warning information, step S605 in the embodiment of the present invention further includes:
step S6051: if the second predicted position information is behind the first predicted position information, second prompt information is obtained and used for reminding the second vehicle to control the speed;
step S6052: if the second predicted position information is the same as the first predicted position information or is before the first position information, second early warning information is obtained;
step S6053: and adjusting the path and the speed of the first vehicle and/or the second vehicle according to the second early warning information.
Specifically, the second predicted position information is predicted position information of the second vehicle after changing the lane, the first predicted position information is position information of the first vehicle after changing the lane of the second vehicle, and if the second predicted position information is after the first predicted position information, it represents that the first vehicle has passed the second vehicle before changing the lane of the second vehicle, and it is only necessary to obtain the second prompt information to prompt the second vehicle to control the vehicle speed. If the second predicted position information is the same as or before the first predicted position information, which means that the possibility of two-vehicle collision is high when the second vehicle changes lanes, the second early warning information needs to be obtained, and the second early warning information is used for adjusting the path and the speed of the first vehicle and/or the second vehicle.
As shown in fig. 6, step S6053 according to the embodiment of the present invention further includes, in order to adjust the path and the vehicle speed of the first and second vehicles:
step S60531: obtaining a preset vehicle distance threshold value;
step S60532: judging whether the distance between the first vehicle and the third vehicle is within the preset distance threshold value;
step S60533: and if the distance between the first vehicle and the third vehicle is within the preset distance threshold value, obtaining third reminding information, wherein the third reminding information is used for reminding the second vehicle of forbidding lane changing.
Specifically, the predetermined inter-vehicle distance threshold value is an inter-vehicle distance index that is calculated from the vehicle speed and the travel route information of a first vehicle and that determines whether or not an inter-vehicle distance between the first and third vehicles, which is a vehicle that passes through a certain section at the same time as the second vehicle at a certain time point and detects whether or not a safe lane change is possible during travel of the second vehicle, enables the second vehicle to make a safe lane change. If the distance between the vehicles is greater than the threshold, it represents that the second vehicle can safely change the lane between the first vehicle and the third vehicle, and if the distance between the vehicles is less than the threshold, it represents that the second vehicle easily collides with the third vehicle during lane changing, and the third reminding information needs to be obtained for reminding the second vehicle to prohibit lane changing.
Step S60534: and if the distance between the first vehicle and the third vehicle is beyond the preset threshold value, obtaining fourth reminding information, wherein the fourth reminding information is used for reminding the first vehicle of accelerating.
Specifically, if the vehicle distance between the first vehicle and the third vehicle is outside the predetermined vehicle distance threshold, the vehicle distance representing the current vehicle distance between the first vehicle and the third vehicle can ensure the safe lane change of the second vehicle, so that only the fourth reminding information needs to be obtained to remind the first vehicle of accelerating to avoid the collision with the rear vehicle to the maximum extent. Further, the speed limit information of the current road can be obtained, so that the upper speed limit of the first vehicle can be further reminded.
Example two
Based on the same inventive concept as the traffic accident early warning method in the foregoing embodiment, the present invention further provides a traffic accident early warning device, as shown in fig. 7, the device includes:
a first obtaining unit 11, wherein the first obtaining unit 11 is used for obtaining first vehicle information, and the first vehicle is located in a first lane;
a second obtaining unit 12, configured to obtain second vehicle information, where the second vehicle is located in a second lane, where the second lane is a lane adjacent to the first lane;
a third obtaining unit 13, the third obtaining unit 13 being configured to obtain first path information and first vehicle speed information of the first vehicle;
a first judging unit 14, where the first judging unit 14 is configured to judge whether the first vehicle needs to change lanes according to the first path information;
a fourth obtaining unit 15, where the fourth obtaining unit 15 is configured to obtain first position information of the first vehicle when the first vehicle needs to change lanes;
a fifth obtaining unit 16, the fifth obtaining unit 16 being configured to obtain second path information and second vehicle speed information of the second vehicle;
a first input unit 17, where the first input unit 17 is configured to use the first path information and the first vehicle speed information as first input information, use the second path information and the second vehicle speed information as second input information, and input the first input information and the second input information into a training model, where the training model is obtained by training multiple sets of training data, and each set of training data in the multiple sets includes: the first input information, the second input information and identification information for identifying whether the first vehicle can change lanes;
a sixth obtaining unit 18, where the sixth obtaining unit 18 is configured to obtain output information of the training model, where the output information includes a first output result and a second output result, where the first output result is a result that the first vehicle can change lanes, and the second output result is a result that the first vehicle cannot change lanes;
a seventh obtaining unit 19, where the seventh obtaining unit 19 is configured to determine whether to obtain first warning information according to the first output result and the second output result, and the first warning information is used to remind the first vehicle to prohibit changing lanes.
Further, the apparatus further comprises:
an eighth obtaining unit, configured to obtain first prompt information if the output information is the first output result, where the first prompt information is used to remind the second vehicle that the first vehicle is about to change lanes;
a ninth obtaining unit, configured to obtain second vehicle speed control information according to the first prompt information, where the second vehicle speed control information is used to control a vehicle speed of the second vehicle.
A tenth obtaining unit, configured to obtain first warning information if the output information is the second output result;
an eleventh obtaining unit, configured to obtain first alternative path information according to the first early warning information, where the first alternative path information is different from the first path information.
Further, the apparatus further comprises:
a second determination unit configured to determine whether the second vehicle needs to change lanes according to second path information and second vehicle speed information of the second vehicle;
a twelfth obtaining unit configured to obtain second predicted position information after the second vehicle changes lanes if the second vehicle needs to change lanes;
a thirteenth obtaining unit, configured to obtain real-time vehicle speed information of the first vehicle when the second vehicle needs to change lanes;
a fourteenth obtaining unit, configured to obtain first predicted position information of the first vehicle after the second vehicle changes lanes according to real-time vehicle speed information of the first vehicle;
a fifteenth obtaining unit, configured to determine whether to obtain second warning information according to the first predicted position information and the second predicted position information, where the second warning information is used to remind the first vehicle and the second vehicle to adjust driving speed and path.
A sixteenth obtaining unit, configured to obtain second prompt information if the second predicted position information is after the first predicted position information, where the second prompt information is used to prompt the second vehicle to control a vehicle speed;
a seventeenth obtaining unit configured to obtain second warning information if the second predicted position information is the same as or before the first predicted position information;
and the first adjusting unit is used for adjusting the path and the speed of the first vehicle and/or the second vehicle according to the second early warning information.
Further, the apparatus further comprises:
an eighteenth obtaining unit configured to obtain a predetermined vehicle distance threshold value;
a third judging unit, configured to judge whether a vehicle distance between the first vehicle and a third vehicle is within the predetermined vehicle distance threshold;
a nineteenth obtaining unit, configured to obtain third reminding information if the vehicle distance between the first vehicle and the third vehicle is within the predetermined vehicle distance threshold, where the third reminding information is used to remind the second vehicle to prohibit lane changing.
A twentieth obtaining unit, configured to obtain fourth reminding information if the distance between the first vehicle and the third vehicle is outside the predetermined distance threshold, where the fourth reminding information is used to remind the first vehicle of accelerating.
Various changes and specific examples of the traffic accident early warning method in the first embodiment of fig. 1 are also applicable to the traffic accident early warning device in the present embodiment, and a person skilled in the art can clearly know the traffic accident early warning device in the present embodiment through the detailed description of the traffic accident early warning method, so that the detailed description is omitted here for the sake of brevity of the description.
Exemplary electronic device
An electronic device of an embodiment of the present invention is described below with reference to fig. 8.
Based on the inventive concept of a traffic accident warning method as in the previous embodiments, the present invention further provides a traffic accident warning device, on which a computer program is stored, which when executed by a processor implements the steps of any one of the above-mentioned traffic accident warning methods.
Where in FIG. 8 the bus architecture is represented by a bus 300, the bus 300 may include any number of interconnected buses and bridges, the bus 300 linking together various circuits including one or more processors, represented by a processor 302, and memory, represented by a memory 304. The bus 300 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 306 provides an interface between the bus 300 and the receiver 301 and transmitter 303. The receiver 301 and the transmitter 303 may be the same element, i.e., a transceiver, providing a means for communicating with various other apparatus over a transmission medium.
The processor 302 is responsible for managing the bus 300 and general processing, and the memory 304 may be used for storing data used by the processor 302 in performing operations.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention 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 invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices), and computer program products according to embodiments of the invention. 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. While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts.
The invention provides a traffic accident early warning method and a device, and a method, and a plurality of methods and ways for implementing the technical scheme, and the above description is only a preferred embodiment of the invention, and it should be noted that, for a person skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the invention, and these improvements and decorations should also be regarded as the protection scope of the invention. All the components not specified in the present embodiment can be realized by the prior art.

Claims (9)

1. A traffic accident early warning method is characterized by comprising the following steps:
step S100: obtaining first vehicle information, the first vehicle being located on a first lane; the first vehicle is a vehicle passing through a certain section at a certain time point, and the first vehicle information comprises the running condition and license plate information of the first vehicle; the first vehicle is traveling in the first lane;
step S200: obtaining second vehicle information, wherein the second vehicle is located in a second lane, and the second lane is a lane adjacent to the first lane; the second vehicle is a vehicle that passes through a certain section at a certain point in time simultaneously with the first vehicle, the second vehicle traveling on the second lane;
step S300: obtaining first path information and first vehicle speed information of the first vehicle; the first path information is the running path information of the first vehicle when the first vehicle passes through the section, and comprises information about whether lane changing is needed, whether the first vehicle runs straight and whether the first vehicle needs to turn; the first vehicle speed is vehicle speed information of the first vehicle when the first vehicle runs on the first lane;
step S400: judging whether the first vehicle needs lane changing or not according to the first path information;
step S500: when the first vehicle needs to change lanes, obtaining first position information of the first vehicle;
step S600: obtaining second path information and second vehicle speed information of the second vehicle; the second path information is the running path information of the second vehicle when passing through the section, and comprises information about whether lane changing is needed, whether the second vehicle is going straight and whether the second vehicle needs to turn; the second vehicle speed is the vehicle speed information when the second vehicle runs on the second lane;
step S700: taking the first path information and the first vehicle speed information as first input information, taking the second path information and the second vehicle speed information as second input information, and inputting the first input information and the second input information into a training model;
step S800: obtaining output information of the training model, wherein the output information comprises a first output result and a second output result, the first output result is a result that the first vehicle can change lanes, and the second output result is a result that the first vehicle cannot change lanes;
step S900: and determining whether first early warning information is obtained or not according to the first output result and the second output result, wherein the first early warning information is used for reminding the first vehicle of forbidding lane changing.
2. The method for warning traffic accidents according to claim 1, wherein the step S900, if the output information is the first output result, comprises the steps of:
step S901 a: obtaining first prompt information, wherein the first prompt information is used for reminding the second vehicle that the first vehicle is about to change lanes;
step S902 a: obtaining second vehicle speed control information according to the first prompt information, wherein the second vehicle speed control information is used for controlling the speed of the second vehicle;
if the output information is the second output result, the method comprises the following steps:
step S901 b: acquiring first early warning information;
step S902 b: obtaining first alternative path information according to the first early warning information, wherein the first alternative path information is different from the first path information; the first alternative path information is another scheme path for the first vehicle to travel to reach the destination, and the first alternative path information is used for preventing traffic accidents by adjusting the travel path of the first vehicle.
3. The method for warning of traffic accident according to claim 1, wherein the step S600 further comprises:
step S601: judging whether the second vehicle needs lane changing or not according to the second path information and the second vehicle speed information of the second vehicle;
step S602: if the second vehicle needs lane changing, second predicted position information after the second vehicle changes lanes is obtained;
step S603: obtaining real-time vehicle speed information of the first vehicle when the second vehicle needs to change lanes;
step S604: according to the real-time speed information of the first vehicle, obtaining first predicted position information of the first vehicle after the second vehicle changes the lane;
step S605: determining whether second early warning information is obtained or not according to the first predicted position information and the second predicted position information, wherein the second early warning information is used for reminding the first vehicle and the second vehicle to adjust the driving speed and the driving path;
the S605 further includes:
step S6051: if the second predicted position information is behind the first predicted position information, second prompt information is obtained and used for reminding the second vehicle to control the speed;
step S6052: if the second predicted position information is the same as the first predicted position information or is before the first position information, second early warning information is obtained;
step S6053: and adjusting the path and the speed of the first vehicle and/or the second vehicle according to the second early warning information.
4. A traffic accident warning method according to claim 3, wherein the step S6053 further comprises:
step S60531: obtaining a preset vehicle distance threshold value; the preset inter-vehicle distance threshold value is an inter-vehicle distance index which is obtained by calculating the speed information and the running path information of a first vehicle and is used for judging whether the inter-vehicle distance between the first vehicle and a third vehicle can enable a second vehicle to safely change lanes or not; the third vehicle is a vehicle which passes through a certain section at a certain time point simultaneously with the second vehicle and is used for detecting whether safe lane changing can be carried out in the running process of the second vehicle;
step S60532: judging whether the distance between the first vehicle and the third vehicle is within the preset distance threshold value;
step S60533: if the distance between the first vehicle and the third vehicle is within the preset distance threshold value, obtaining third reminding information, wherein the third reminding information is used for reminding the second vehicle of forbidding lane changing;
step S60534: and if the distance between the first vehicle and the third vehicle is beyond the preset distance threshold value, obtaining fourth reminding information, wherein the fourth reminding information is used for reminding the first vehicle of accelerating.
5. The method as claimed in claim 1, wherein the training model in step S700 is obtained by training a plurality of sets of training data, each of the plurality of sets of training data comprising: the first input information, the second input information, and identification information for identifying whether the first vehicle can change lanes; under the condition of obtaining the first path information and the first vehicle speed information, and the second path information and the second vehicle speed information, if the current running path and the vehicle speed of the first vehicle can ensure that the second vehicle can run safely under the current path and the vehicle speed, the training model can output the information of whether the first vehicle can change the lane, the information of whether the first vehicle can change the lane output by the training model is checked through the information of whether the first vehicle can change the lane, if the information of whether the first vehicle can change the lane is consistent with the information of whether the first vehicle can change the lane, the supervised learning of the training data is finished, and the supervised learning of the next group of training data is carried out; and if the output information of whether the first vehicle can change the lane is inconsistent with the identified information of whether the first vehicle can change the lane, adjusting the training model by the training model, and performing supervised learning of the next group of training data after the training model reaches the expected accuracy.
6. A traffic accident warning device, comprising:
a first obtaining unit (11), the first obtaining unit (11) being configured to obtain first vehicle information, the first vehicle being located on a first lane;
a second obtaining unit (12), wherein the second obtaining unit (12) is used for obtaining second vehicle information, and the second vehicle is positioned in a second lane, wherein the second lane is a lane adjacent to the first lane;
a third obtaining unit (13), the third obtaining unit (13) being configured to obtain first path information and first vehicle speed information of the first vehicle;
a first judging unit (14), wherein the first judging unit (14) is used for judging whether the first vehicle needs to change lanes or not according to the first path information;
a fourth obtaining unit (15), the fourth obtaining unit (15) being configured to obtain first position information of the first vehicle when the first vehicle needs to change lanes;
a fifth obtaining unit (16), the fifth obtaining unit (16) being configured to obtain second path information and second vehicle speed information of the second vehicle;
a first input unit (17), where the first input unit (17) is configured to use the first path information and the first vehicle speed information as first input information, use the second path information and the second vehicle speed information as second input information, and input the first input information and the second input information into a training model, where the training model is obtained by training multiple sets of training data, and each set of training data in the multiple sets of training data includes: the first input information, the second input information and identification information for identifying whether the first vehicle can change lanes;
a sixth obtaining unit (18), wherein the sixth obtaining unit (18) is configured to obtain output information of the training model, wherein the output information includes a first output result and a second output result, the first output result is a result that the first vehicle can change lanes, and the second output result is a result that the first vehicle cannot change lanes;
a seventh obtaining unit (19), wherein the seventh obtaining unit (19) is configured to determine whether to obtain first warning information according to the first output result and the second output result, and the first warning information is used to remind the first vehicle to prohibit changing lanes.
7. The traffic accident warning device according to claim 6, further comprising:
an eighth obtaining unit, configured to obtain first prompt information if the output information is the first output result, where the first prompt information is used to remind the second vehicle that the first vehicle is about to change lanes;
a ninth obtaining unit, configured to obtain second vehicle speed control information according to the first prompt information, where the second vehicle speed control information is used to control a vehicle speed of the second vehicle;
a tenth obtaining unit, configured to obtain first warning information if the output information is the second output result;
an eleventh obtaining unit, configured to obtain first alternative path information according to the first early warning information, where the first alternative path information is different from the first path information.
8. The traffic accident warning device according to claim 7, further comprising:
a second determination unit configured to determine whether the second vehicle needs to change lanes according to second path information and second vehicle speed information of the second vehicle;
a twelfth obtaining unit configured to obtain second predicted position information after the second vehicle changes lanes if the second vehicle needs to change lanes;
a thirteenth obtaining unit, configured to obtain real-time vehicle speed information of the first vehicle when the second vehicle needs to change lanes;
a fourteenth obtaining unit, configured to obtain first predicted position information of the first vehicle after the second vehicle changes lanes according to real-time vehicle speed information of the first vehicle;
a fifteenth obtaining unit, configured to determine whether to obtain second warning information according to the first predicted position information and the second predicted position information, where the second warning information is used to remind the first vehicle and the second vehicle to adjust driving speed and path;
a sixteenth obtaining unit, configured to obtain second prompt information if the second predicted position information is after the first predicted position information, where the second prompt information is used to prompt the second vehicle to control a vehicle speed;
a seventeenth obtaining unit configured to obtain second warning information if the second predicted position information is the same as or before the first predicted position information;
and the first adjusting unit is used for adjusting the path and the speed of the first vehicle and/or the second vehicle according to the second early warning information.
9. The traffic accident warning device according to claim 8, further comprising:
an eighteenth obtaining unit configured to obtain a predetermined vehicle distance threshold value;
a third judging unit, configured to judge whether a vehicle distance between the first vehicle and a third vehicle is within the predetermined vehicle distance threshold;
a nineteenth obtaining unit, configured to obtain third reminding information if a vehicle distance between the first vehicle and the third vehicle is within the predetermined vehicle distance threshold, where the third reminding information is used to remind the second vehicle to prohibit lane changing;
a twentieth obtaining unit, configured to obtain fourth reminding information if the distance between the first vehicle and the third vehicle is outside the predetermined distance threshold, where the fourth reminding information is used to remind the first vehicle of accelerating.
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