CN108597217B - Expressway accident monitoring and prompting method - Google Patents

Expressway accident monitoring and prompting method Download PDF

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CN108597217B
CN108597217B CN201810427659.3A CN201810427659A CN108597217B CN 108597217 B CN108597217 B CN 108597217B CN 201810427659 A CN201810427659 A CN 201810427659A CN 108597217 B CN108597217 B CN 108597217B
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vehicle
section
lane
highway
speed
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CN108597217A (en
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陈萍
韩功学
张振和
冯焕杰
黄明海
韩奇峰
李凯章
王鹏英
毛登峰
陈斌
伍倩
田晓霞
田海龙
白冰
袁卫锁
李峰辉
林琳
李中全
王鸿
马萌
贺钰钦
魏延忠
屈娜
申炎炎
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Zhengzhou Transportation Planning Survey Design And Research Institute Co ltd
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Zhengzhou Communications Planning Survey & Design Institute
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    • 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
    • G08G1/0133—Traffic data processing for classifying traffic situation
    • 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
    • G08G1/164—Centralised systems, e.g. external to vehicles
    • 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
    • G08G1/20—Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles
    • G08G1/205—Indicating the location of the monitored vehicles as destination, e.g. accidents, stolen, rental

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  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Traffic Control Systems (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)

Abstract

The invention relates to a highway accident monitoring and prompting method, and belongs to the technical field of highway safety. The invention adopts a zone lane dividing method and a video vehicle detector speed measuring method, and combines the magnitude relation of the average running speed of the vehicle, the maximum running speed threshold value of the vehicle and the minimum running speed threshold value of the vehicle to carry out intelligent monitoring and prompting on the occurrence of the highway traffic accident, if the zone to be endangered or the dangerous zone is monitored, alarm information is displayed in a prompt screen of a preorder zone of the zone to remind a rear vehicle, and besides, the information of the zone is also sent to a traffic management department to process the dangerous accident. Compared with the prior art, the invention realizes visualization, systematization and intellectualization of highway accident monitoring, and can fundamentally improve the management level of the highway.

Description

Expressway accident monitoring and prompting method
Technical Field
The invention relates to a highway accident monitoring and prompting method, and belongs to the technical field of highway safety.
Background
Nowadays, motor vehicles are more and more, and the occurrence probability of traffic accidents is also more and more. Particularly on a highway, due to various weather problems such as fog, snow storm, heavy rain and other poor weather with low visibility, serious traffic jam, vehicle accidents, even chain collisions and other serious traffic accidents occur frequently on the highway, and if the traffic accidents occur, the traffic accidents are not processed in time, the subsequent vehicles are always dangerous.
At present, the monitoring of the expressway for dangerous accidents is usually realized only by adopting a video monitoring mode and manually checking monitoring videos or receiving alarm calls, which is not timely for the handling of the dangerous accidents, and particularly, secondary accidents are easily caused when the dangerous accidents are not handled and the dangerousness to vehicles is very large. Therefore, the realization of visualization, systematization and intellectualization of highway accident monitoring is an important measure for improving the highway management level.
Disclosure of Invention
The invention aims to solve the technical problems of limitation and deficiency of the prior art, and provides a highway accident monitoring and prompting method to solve the problems that the prior art cannot timely know and process dangerous accidents, causes secondary accidents to subsequent vehicles and the like.
The technical scheme of the invention is as follows: a highway accident monitoring and prompting method specifically comprises the following steps:
step0.1: the interval of the highway adjacent toll station A, B is divided into a plurality of sections { X ] according to the distance length delta l1,X2,…,XnAnd according to different traffic lanes y1,y2…ymWill section { X }1,X2,…,XnIs further refined into
Figure GDA0002647890050000011
Step0.2: according to different sections and different lanes
Figure GDA0002647890050000012
a∈[1,n],b∈[1,m]Setting up corresponding sections and corresponding lanes
Figure GDA0002647890050000013
Maximum driving speed threshold of vehicle
Figure GDA0002647890050000014
a∈[1,n]b∈[1,m]And a vehicle minimum travel speed threshold
Figure GDA0002647890050000015
a∈[1,n]b∈[1,m]；
Step 1: calculating different traffic lanes of each section of highway
Figure GDA0002647890050000016
a∈[1,n],b∈[1,m]Average running speed of the vehicle
Figure GDA0002647890050000017
Step2.1: if a certain section of a traffic lane
Figure GDA0002647890050000018
a∈[1,n],b∈[1,m]Average running speed of the vehicle
Figure GDA0002647890050000019
Lower than or equal to the maximum driving speed threshold of the vehicle corresponding to the lane of travel
Figure GDA00026478900500000110
And is higher than or equal to the minimum driving speed threshold of the vehicle of the corresponding lane
Figure GDA0002647890050000021
Namely, the requirement of formula (1) is satisfied, the lane in the section is considered
Figure GDA0002647890050000022
No accident occurs, and belongs to a normal section;
Figure GDA0002647890050000023
step2.2: if a certain section of a traffic lane
Figure GDA0002647890050000024
a∈[1,n],b∈[1,m]Average running speed of the vehicle
Figure GDA0002647890050000025
Vehicle maximum travel speed threshold above corresponding lane of travel
Figure GDA0002647890050000026
If the requirement of formula (2) is satisfied, the lane in the section is considered
Figure GDA0002647890050000027
Possibly dangerous accidents, belonging to the section to be endangered, will be in the first two sections of this section, i.e. Xa-1And Xa-2Displaying a to-be-endangered alarm in the section prompt screen to remind a vehicle coming from the rear; meanwhile, the road section information is sent to a traffic management department;
Figure GDA0002647890050000028
step2.3: if a certain section of a traffic lane
Figure GDA0002647890050000029
a∈[1,n],b∈[1,m]Average running speed of the vehicle
Figure GDA00026478900500000210
Below a minimum driving speed threshold for a vehicle corresponding to a lane of travel
Figure GDA00026478900500000211
If the requirement of formula (3) is satisfied, the lane in the section is considered
Figure GDA00026478900500000212
The dangerous accident occurs in the dangerous section, the first three sections of the dangerous section, namely Xa-1、Xa-2And Xa-3A danger alarm is displayed in the section prompt screen to remind a vehicle coming from the rear; and simultaneously, the road section information is sent to a traffic management department.
Further, the steps Step0.1 and Step0.2 are included in the pretreatment stage and only need to be performed once.
Further, in step step0.1, the distance Δ l is 1km, that is, Δ l is 1000m, which may be changed according to the total length l between the adjacent toll booths A, B on the actual expressway; the value of the number n of the divided sections is calculated by a formula (4) and is rounded upwards; each section is provided with a prompt screen and three video vehicle detectors, and the number m of the lanes is determined by the current number of lanes;
n＝l/Δl (4)。
further, in step step0.1, the number n of the divided sections and the number m of the lanes need to satisfy the requirement of formula (5):
Figure GDA00026478900500000213
further, in the step step0.2, the vehicle maximum driving speed threshold value
Figure GDA00026478900500000214
a∈[1,n]b∈[1,m]And a vehicle minimum travel speed threshold
Figure GDA00026478900500000215
a∈[1,n]b∈[1,m]Determined by the road segment.
Further, in Step1, the average running speed of the vehicle is calculated
Figure GDA00026478900500000216
The method comprises the following steps:
during a certain time t, from entering the section Xa,a∈[1,n]The video vehicle detector at the rear 100 meters dynamically collects passing vehicles c1,c2…cp1The lane { c } where1y·q,c2y·q…cp1y·qSpeed { c }, vehicle speed1v·q,c2v·q…cp1v·qInformation is stored in a memory, wherein p1 represents the number of vehicles passing through the video vehicle detector in the time period;
from the entry section Xa,a∈[1,n]Video vehicle detector at delta l/2 later dynamically collects passing vehicles c1,c2…cp2Get the crane inTrack { c1y·z,c2y·z…cp2y·zSpeed { c }, vehicle speed1v·z,c2v·z…cp2v·zInformation is stored in a memory, wherein p2 represents the number of vehicles passing through the video vehicle detector in the time period;
from the exit section Xa,a∈[1,n]Video vehicle detector in front 100 meters dynamically collects passing vehicles c1,c2…cp3The lane { c } where1y·h,c2y·h…cp3y·hSpeed { c }, vehicle speed1v·h,c2v·h…cp3v·hInformation is stored in a memory, wherein p3 represents the number of vehicles passing through the video vehicle detector in the time period;
average running speed of vehicle
Figure GDA0002647890050000031
The calculation formula (2) is shown as formula (6), wherein the function SUM represents the SUM of all elements in the collection, and the function LEN represents the number of all elements in the collection; in addition, the time t is generally controlled within 5 seconds to achieve the real-time detection effect.
Figure GDA0002647890050000032
Figure GDA0002647890050000033
Figure GDA0002647890050000034
Figure GDA0002647890050000035
Further, in steps Step2.2 and Step2.3, if the current segment X is a current segment XaIf the requirement that a is less than or equal to 3 is met, the user only needs to go from the toll station A to the current section XaAnd displaying an alarm in the prompt screen.
The invention has the beneficial effects that: the invention adopts a zone lane dividing method and a video vehicle detector speed measuring method, and combines the magnitude relation of the average running speed of the vehicle, the maximum running speed threshold value of the vehicle and the minimum running speed threshold value of the vehicle to carry out intelligent monitoring and prompting on the occurrence of the highway traffic accident, if the zone to be endangered or the dangerous zone is monitored, alarm information is displayed in a prompt screen of a preorder zone of the zone to remind a rear vehicle, and besides, the information of the zone is also sent to a traffic management department to process the dangerous accident. Compared with the prior art, the invention realizes visualization, systematization and intellectualization of highway accident monitoring, and can fundamentally improve the management level of the highway.
Drawings
FIG. 1 is a flow chart illustrating the implementation of the present invention;
FIG. 2 is a schematic view of an initialization process of the present invention;
FIG. 3 is a flow chart illustrating the calculation of the average vehicle speed according to the present invention.
Detailed Description
The invention is further described with reference to the following drawings and detailed description.
Example 1: a highway accident monitoring and prompting method specifically comprises the following steps:
step0.1: the interval of the highway adjacent toll station A, B is divided into a plurality of sections { X ] according to the distance length delta l1,X2,…,XnAnd according to different traffic lanes y1,y2…ymWill section { X }1,X2,…,XnIs further refined into
Figure GDA0002647890050000041
Specifically, the method comprises the following steps:
the total distance l between the toll stations A, B on the highway is 5000m, the distance length Δ l is 1000m, n is l/Δ l is 5, that is, there are 5 sections between the toll stations, and the number m of lanes on the section is 3, the section set is: { X11,X12,X13,X21,X22,X23,X31,X32,X33,X41,X42,X43,X51,X52,X53}。
Step0.2: according to different sections and different lanes
Figure GDA0002647890050000042
a∈[1,n],b∈[1,m]Setting up corresponding sections and corresponding lanes
Figure GDA0002647890050000043
Maximum driving speed threshold of vehicle
Figure GDA0002647890050000044
a∈[1,n]b∈[1,m]And a vehicle minimum travel speed threshold
Figure GDA0002647890050000045
a∈[1,n]b∈[1,m]；
Specifically, the method comprises the following steps:
if the road section is a smooth road section, the speed threshold values of all the sections are the same, namely the maximum driving speed threshold value of the vehicle in the first lane is Va1·MAX,a∈[1,5]120km/h, minimum vehicle speed threshold Va1·MIN,a∈[1,5]60 km/h; the maximum driving speed threshold value of the vehicle of the second traffic lane is Va2·MAX,a∈[1,5]120km/h, minimum vehicle speed threshold Va2·MIN,a∈[1,5]90 km/h; the maximum driving speed threshold value of the vehicle of the third lane is Va3·MAX,a∈[1,5]120km/h, minimum vehicle speed threshold Va3·MIN,a∈[1,5]＝110km/h。
Step 1: calculating different traffic lanes of each section of highway
Figure GDA0002647890050000046
a∈[1,n],b∈[1,m]Average running speed of the vehicle
Figure GDA0002647890050000047
Specifically, the method comprises the following steps:
suppose that the third lane X is in the second zone23Average vehicle speed V23113 km/h; in the third section, the first traffic lane X31Average vehicle speed V31124 km/h; second traffic lane X in fourth section42Average vehicle speed V42＝74km/h。
Step2.1: if a certain section of a traffic lane
Figure GDA0002647890050000051
a∈[1,n],b∈[1,m]Average running speed of the vehicle
Figure GDA0002647890050000052
Lower than or equal to the maximum driving speed threshold of the vehicle corresponding to the lane of travel
Figure GDA0002647890050000053
And is higher than or equal to the minimum driving speed threshold of the vehicle of the corresponding lane
Figure GDA0002647890050000054
Namely, the requirement of formula (1) is satisfied, the lane in the section is considered
Figure GDA0002647890050000055
No accident occurs, and belongs to a normal section;
Figure GDA0002647890050000056
specifically, the method comprises the following steps:
third-row lane X in second section23For example, the average traveling speed V23113km/h in the section and the threshold value V for the maximum driving speed of the vehicle on the driving lane23·MAX120km/h and a vehicle minimum travel speed threshold V23·MIN110km/h, so the lane X in the section is considered23No accident occurs, and belongs to a normal section.
Step2.2: if a certain section of a traffic lane
Figure GDA0002647890050000057
a∈[1,n],b∈[1,m]Average running speed of the vehicle
Figure GDA0002647890050000058
Vehicle maximum travel speed threshold above corresponding lane of travel
Figure GDA0002647890050000059
If the requirement of formula (2) is satisfied, the lane in the section is considered
Figure GDA00026478900500000510
Possibly dangerous accidents, belonging to the section to be endangered, will be in the first two sections of this section, i.e. Xa-1And Xa-2Displaying a to-be-endangered alarm in the section prompt screen to remind a vehicle coming from the rear; meanwhile, the road section information is sent to a traffic management department;
Figure GDA00026478900500000511
specifically, the method comprises the following steps:
in the third section, the first traffic lane X31For example, the average traveling speed V31124km/h in the section and the highest driving speed threshold V of the vehicle on the driving lane23·MAX120km/h, so the lane X in the section is considered31Belonging to the section to be endangered, the first two sections of which, i.e. X2And X1Displaying a to-be-endangered alarm in the section prompt screen to remind a vehicle coming from the rear; and simultaneously, the road section information is sent to a traffic management department.
Step2.3: if a certain section of a traffic lane
Figure GDA00026478900500000512
a∈[1,n],b∈[1,m]Average running speed of the vehicle
Figure GDA00026478900500000513
Below a minimum driving speed threshold for a vehicle corresponding to a lane of travel
Figure GDA00026478900500000514
When the requirement of formula (3) is satisfied, theFor the section of the traffic lane
Figure GDA00026478900500000515
The dangerous accident occurs in the dangerous section, the first three sections of the dangerous section, namely Xa-1、Xa-2And Xa-3A danger alarm is displayed in the section prompt screen to remind a vehicle coming from the rear; and simultaneously, the road section information is sent to a traffic management department.
Figure GDA00026478900500000516
Specifically, the method comprises the following steps:
second traffic lane X in fourth section42For example, the average traveling speed V42A minimum driving speed threshold V of the vehicle in the section and the lane is 74km/h42·MINUnder 90km/h, the traffic lane X in the section is considered42Belonging to a dangerous zone, the first three zones of which will be3、X2And X1Displaying a to-be-endangered alarm in the section prompt screen to remind a vehicle coming from the rear; and simultaneously, the road section information is sent to a traffic management department.
The above examples are merely illustrative of embodiments of the present invention, which are described in more detail and detail, and should not be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (2)

1. A highway accident monitoring and prompting method is characterized by comprising the following steps:
step0.1: the interval of the highway adjacent toll station A, B is divided into a plurality of sections { X ] according to the distance length delta l1,X2,…,XnAnd according to different traffic lanes y1,y2…ymWill section { X }1,X2,…,XnIs further refined into
Figure FDA0002647890040000011
Step0.2: according to different sections and different lanes
Figure FDA0002647890040000012
Setting up corresponding sections and corresponding lanes
Figure FDA0002647890040000013
Maximum driving speed threshold of vehicle
Figure FDA0002647890040000014
And a vehicle minimum travel speed threshold
Figure FDA0002647890040000015
Step 1: calculating different traffic lanes of each section of highway
Figure FDA0002647890040000016
Average running speed of the vehicle
Figure FDA0002647890040000017
Step2.1: if a certain section of a traffic lane
Figure FDA0002647890040000018
Average running speed of the vehicle
Figure FDA0002647890040000019
Lower than or equal to the maximum driving speed threshold of the vehicle corresponding to the lane of travel
Figure FDA00026478900400000110
And is higher than or equal to the minimum driving speed threshold of the vehicle of the corresponding lane
Figure FDA00026478900400000111
I.e. the requirement of formula (1) is satisfied, thenConsidering the traffic lane of the section
Figure FDA00026478900400000112
No accident occurs, and belongs to a normal section;
Figure FDA00026478900400000113
step2.2: if a certain section of a traffic lane
Figure FDA00026478900400000114
Average running speed of the vehicle
Figure FDA00026478900400000115
Vehicle maximum travel speed threshold above corresponding lane of travel
Figure FDA00026478900400000116
If the requirement of formula (2) is satisfied, the lane in the section is considered
Figure FDA00026478900400000117
Possibly dangerous accidents, belonging to the section to be endangered, will be in the first two sections of this section, i.e. Xa-1And Xa-2Displaying a to-be-endangered alarm in the section prompt screen to remind a vehicle coming from the rear; meanwhile, the road section information is sent to a traffic management department;
Figure FDA00026478900400000118
step2.3: if a certain section of a traffic lane
Figure FDA00026478900400000119
Average running speed of the vehicle
Figure FDA00026478900400000120
Below a minimum driving speed threshold for a vehicle corresponding to a lane of travel
Figure FDA00026478900400000121
If the requirement of formula (3) is satisfied, the lane in the section is considered
Figure FDA00026478900400000122
The dangerous accident occurs in the dangerous section, the first three sections of the dangerous section, namely Xa-1、Xa-2And Xa-3A danger alarm is displayed in the section prompt screen to remind a vehicle coming from the rear; meanwhile, the road section information is sent to a traffic management department;
the steps of Step0.1 and Step0.2 belong to a pretreatment stage and only need to be carried out once;
in the step step0.1, the distance Δ l is 1km, that is, Δ l is 1000m, and may be changed according to the total length l between the adjacent toll booths A, B on the actual expressway; the value of the number n of the divided sections is calculated by a formula (4) and is rounded upwards; each section is provided with a prompt screen and three video vehicle detectors, and the number m of the lanes is determined by the current number of lanes;
n＝l/Δl (4)；
in the step Step0.1, the number n of the divided sections and the number m of the lanes need to meet the requirement of a formula (5):
Figure FDA0002647890040000021
in the step Step0.2, the maximum driving speed threshold value of the vehicle
Figure FDA0002647890040000022
And a vehicle minimum travel speed threshold
Figure FDA0002647890040000023
Determined by the road section;
in the Step1, the average traveling speed of the vehicle is calculated
Figure FDA0002647890040000024
The method comprises the following steps:
during a certain time t, from entering the section Xa,a∈[1,n]The video vehicle detector at the rear 100 meters dynamically collects passing vehicles c1,c2…cp1The lane { c } where1y·q,c2y·q…cp1y·qSpeed { c }, vehicle speed1v·q,c2v·q…cp1v·qInformation is stored in a memory, wherein p1 represents the number of vehicles passing through the video vehicle detector in the time period;
from the entry section Xa,a∈[1,n]Video vehicle detector at delta l/2 later dynamically collects passing vehicles c1,c2…cp2The lane { c } where1y·z,c2y·z…cp2y·zSpeed { c }, vehicle speed1v·z,c2v·z…cp2v·zInformation is stored in a memory, wherein p2 represents the number of vehicles passing through the video vehicle detector in the time period;
from the exit section Xa,a∈[1,n]Video vehicle detector in front 100 meters dynamically collects passing vehicles c1,c2…cp3The lane { c } where1y·h,c2y·h…cp3y·hSpeed { c }, vehicle speed1v·h,c2v·h…cp3v·hInformation is stored in a memory, wherein p3 represents the number of vehicles passing through the video vehicle detector in the time period;
average running speed of vehicle
Figure FDA0002647890040000025
The calculation formula (2) is shown as formula (6), wherein the function SUM represents the SUM of all elements in the collection, and the function LEN represents the number of all elements in the collection;
Figure FDA0002647890040000031
2. the highway accident monitoring and prompting method according to claim 1, wherein: said Step22, and Step2.3, if the current segment XaIf the requirement that a is less than or equal to 3 is met, the user only needs to go from the toll station A to the current section XaAnd displaying an alarm in the prompt screen.
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