CN108062869A - Expressway chain collision method for early warning and system - Google Patents
Expressway chain collision method for early warning and system Download PDFInfo
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- CN108062869A CN108062869A CN201610984874.4A CN201610984874A CN108062869A CN 108062869 A CN108062869 A CN 108062869A CN 201610984874 A CN201610984874 A CN 201610984874A CN 108062869 A CN108062869 A CN 108062869A
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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
- G08G1/161—Decentralised systems, e.g. inter-vehicle communication
- G08G1/162—Decentralised systems, e.g. inter-vehicle communication event-triggered
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Abstract
The present invention provides a kind of expressway chain collision method for early warning and system, smart machine acquisition and timing on vehicle send the acceleration of current vehicle to server end, speed, location information, accident information, recover normal information, exception information, server end, for receiving the vehicle acceleration that smart machine is sent in real time, speed, location information, exception information, accident information, and combining position information, accident information, and it is in communication with each other information with vehicle, judge whether that traffic accident occurs, during to being judged as occurring traffic accident, server end sends warning information to smart machine.The present invention onboard can separately set smart machine and carry out early warning, the intelligent movable equipment mobile phone that nowadays almost everybody has can also be used as smart machine, it communicates with server-side and sends and receives running information, circulate a notice of accident information in time or know front accident early warning information.
Description
Technical field
The present invention relates to a kind of traffic accident accident pre-alarming system more particularly to a kind of expressway chain of rings traffic accident early warning system and sides
Method.
Background technology
Year end 2015 of cut-off, China's highway total kilometrage reach 120,000 kilometers, and according to Ministry of Public Security's website message, the Ministry of Public Security hands over
The data of pipe office statistics are shown, by the end of the year 2015, national vehicle guaranteeding organic quantity is up to 2.79 hundred million, wherein 1.72 hundred million, automobile；
3.27 hundred million people of vehicle driver, wherein motorist are more than 2.8 hundred million people, and in terms of driver's driving age, the driving age, which is discontented with 1 year, drives
36,130,000 people of people is sailed, accounts for the 11.04% of driver's sum.2.4 hundred million people of male driver accounts for 74.29%, women driver 84,150,000
People accounts for 25.71%.With the fast development of Chinese national economy and the surge of car ownership, brought convenience to people's lives
Meanwhile the security risk that can not be ignored also is brought, China's expressway traffic safety situation very severe, it has also become China one
A serious social concern.Road safety accident causes huge harm to the property and lives and properties of people.
Related data counts, and a chain of rear-end collision of hitting of the highway that only in January, 2013 occurs is as high as more than 30
It rises, wherein the only flat fastlink in capital, just has 100 a chain of vehicle hit occurs, causes 2 dead 17 wounds.To traffic thing
Therefore analysis shows, more than 80% car accident is caused by driver does not have the enough reaction time, and the chain of rings ratio of knocking into the back surpasses
Cross 65%.If the reaction time that driver can win 1 to 2 seconds takes corresponding measure, the chain of rings can be substantially reduced and knocked into the back
The incidence of accident.Under normal circumstances, generally more than 100 km/h, driver needs big vehicle on expressway travel speed
The time of about 0.75 ~ 1.5s discovers traffic accident [3], to take corresponding measure.Highway pileup one
As be happened at the bad weathers such as night and the misty rain of low visibility, the situation of low visibility makes reaction time needed for driver more
Long, especially big, traffic congestion of bad weather, traffic density etc., vehicle can only notice the vehicle of front traveling at this time,
Corresponding reaction can be made according to the prompting that it is provided, so undoubtedly extends the passing time of reaction.On the whole, drive
Member along travel direction is in be incremented by state by tandem from discovering dangerous to reaction time of brake operation is taken.Vehicle location away from
Accident spot distance is more remote, and driver needs the time more grown to make correlated response.It can not react in time, be public at a high speed
A small traffic accident can usually cause the main reason for a chain of rear-end impact [4] on the road.How highway friendship is reduced
The incidence of interpreter's event is current domestic and international intelligent transportation system（Intelligent Transportati on
System, abbreviation ITS）It is directed to the focal issue solved.
Compared to western countries, starting of the China in ITS fields is late, and infrastructure is still not perfect, both domestic and external at present
In terms of research hotspot concentrates on the prevention of accident for the first time.Such as article [3-4] is real by measuring spacing using Laser Detection Technique
Existing automotive safety alarm improves the active safety performance of automobile.Article [5] devises a ultrasonic wave based on STC89C52
Ranging for preventing collision system carries out temperature-compensating to ultrasonic wave, effectively increases range accuracy.Article [6] uses super low-power consumption
MSP430 microcontrollers are as CPU control modules, the important criterion that the acceleration of acute variation is occurred as accident.With reference to GPS
Location technology devises the device of a set of car accident judgement and positioning with section matching algorithm.But the above scheme is not
It uses specific instrument or device with can avoiding, needs higher cost with vehicle integration, promote threshold height, in practical applications
Early warning effect is also had a greatly reduced quality.
Issue report claims at the beginning of U.S. IT survey institutes Gartner2016, and global calculation equipment shipment amount will reach within 2016
To 2,400,000,000, increase by 1.9% on a year-on-year basis.Meanwhile Gartner, it is expected that the end of the year in 2016, the mobile phone in the whole world 82% is smart mobile phone,
12% was improved compared with 2015.
The function of smart machine is stronger and stronger, and built-in sensor can realize positioning function（GPS）, tachometric survey
（GPS）, acceleration analysis（Each mobile phone has 3-axis acceleration sensor）, vibrating sensor etc..
The content of the invention
It is an object of the invention to provide a kind of a chain of shock early warning system in expressway and methods, are deposited with solving the prior art
The problem of.
The present invention uses following technical scheme：
Expressway chain collision method for early warning, including
Smart machine on vehicle monitors acceleration, speed, the location information of itself in real time, and timing is sent to these information
Server end；Meanwhile the smart machine on vehicle analyzes the acceleration and speed that monitor in real time, if acceleration or
Drastic change occurs for speed, then exception information is sent to server-side immediately, if vehicle recovers normal again in the short time after drastic change
Traveling then sends to server end and recovers normal information；If smart machine analyzes and determines that accident occurs for vehicle, immediately to service
Device end sends accident information；
After the exception information that smart machine on received server-side to vehicle is sent, the smart machine hair on vehicle is received
Before the information for the recovery normally travel sent, the smart machine on vehicle sends inquiry message in real time, if the information sent
Response is not received, then judges vehicle lost contact, confirms that vehicle sends traffic accident；
After if server end analyzes the vehicle position information received, judge that vehicle is on highway, and take
Business device termination receives the accident information of the smart machine transmission on vehicle or through judging traffic accident occurs, then server end root
Judge vehicle heading according to the location information received, early warning letter is sent to the smart machine in accident vehicle front vehicle
Breath.
（1）Itself acceleration of the smart machine according to detection, speed, divide acceleration and speed in real time
Analysis, if acceleration and/or velocity variations exceed the threshold range of setting, and the two becomes cancellation in very short time, then sentences
Surely accident occurs, accident information is sent to server end；
（2）Acceleration, speed, the location information that smart machine timing on received server-side vehicle is sent, while to receiving
To information analyze in real time, if within the time of setting, be not received by information of vehicles, immediately to Vehicular intelligent equipment send
Inquiry message is not such as connected to response, then judges vehicle lost contact, confirms that vehicle sends traffic accident.
The smart machine is to be equipped with alignment sensor, acceleration transducer, acceleration transducer, wireless communication module
Portable movable smart machine or smart machine inside the vehicle is fixedly mounted.
The server end simultaneously smart machine in accident vehicle front vehicle send incident area congestion information, to
The smart machine of involved area sends warning information.
The congestion information includes number of vehicles in incident area, follow-up each trolley passes through the estimated time needed.
When the server end does not receive accident information, the passage situation of current highway is sent to smart machine,
The passage situation includes the Density Distribution of preamble vehicle, reaches the estimated time of a certain target point；Server side to monitor simultaneously
Whether each trolley exceeds the speed limit.
Expressway chain collision early warning system, including：
Smart machine on vehicle, for gathering and periodically being sent to server end acceleration, speed, the position letter of current vehicle
Breath, accident information recover normal information, exception information, while for receiving the warning information of server transmission, congestion information；
Server end, for receiving the vehicle acceleration, speed, location information, exception information, accident that smart machine sends in real time
Information, and combining position information, accident information and information is in communication with each other with vehicle, judge whether that traffic accident occurs, it is right
When being judged as occurring traffic accident, server end sends warning information to smart machine.
（1）When smart machine on vehicle analyzes the acceleration and speed that monitor in real time, if acceleration or
Drastic change occurs for speed, then illustrates that vehicle is abnormal, and exception information is sent to server-side immediately, if after drastic change in the short time
Vehicle recovers normally travel again, then is sent to server end and recover normal information；
（2）Itself acceleration of the smart machine according to detection, speed, analyze acceleration and speed, such as in real time
Fruit acceleration and/or velocity variations are beyond the threshold range set, and the two becomes cancellation in very short time, then judges to occur
Accident sends accident information to server end；
（3）Acceleration that smart machine on received server-side vehicle is sent, speed, location information, while to receiving
Information is analyzed in real time, if within the time of setting, is not received by information of vehicles, sends inquire to Vehicular intelligent equipment immediately
Information is not such as connected to response, then judges vehicle lost contact, confirms that vehicle sends traffic accident.
The smart machine is to be equipped with alignment sensor, acceleration transducer, acceleration transducer, wireless communication module
Portable movable smart machine or smart machine inside the vehicle is fixedly mounted.
Beneficial effects of the present invention：The present invention onboard can separately set smart machine and carry out early warning, it is possible to use nowadays several
Intelligent movable equipment-mobile phone that everybody has communicates with server-side as smart machine and sends and receives running information, in time
Circular accident information knows front accident early warning information.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
The present invention provides a kind of expressway chain collision method for early warning, during it runs vehicle according to the smart machine on vehicle
The information of acquisition analyzed and on the vehicle of received server-side smart machine send vehicle operating information analysis,
Judge whether that accident occurs, in the event of accident, early warning is carried out to subsequent vehicle, prevent serious a chain of traffic accident or tight
Congestion again.
The expressway chain collision method for early warning of the present invention, it is necessary to install what is be pre-designed in advance in vehicle-mounted smart machine
Monitoring and early warning software, which can obtain the vehicle operating information obtained by the hardware in smart machine, and vehicle is run
Information is sent to server end；Meanwhile the software can also carry out after tentatively judging the information that smart machine itself obtains,
It will determine that result is sent to server end.
The method of the present invention includes the following steps：
Smart machine timing on vehicle sends the travelings such as acceleration, speed, the location information of current vehicle to server end and believes
Breath, at the same according to location information obtain vehicle whether travel in high speed, the information such as vehicle heading.Meanwhile smart machine
According to the acceleration of itself of detection, speed, the variation of acceleration and speed in setting time is analyzed, if data
The information that normal then timing is collected to server end transmission, if speed and acceleration are in the short time（The short time is prior
The time of setting, specific length can rule of thumb be set）Interior generation drastic change, then smart machine is immediately to server end transmission
Exception information；And if short time drastic change occurs the time that smart machine detects later and enters regime values scope, intelligence
Energy equipment is sent again to server recovers normal information, is sent out if smart machine judges that accident occurs for vehicle to server end
Send accident information.
And acceleration that smart machine on server end timing receipt vehicle is sent, speed, position, to data tracking point
Analysis if server end in setting time, is not received by the information of vehicles of smart machine transmission, sends to vehicle ask immediately
It asks information, is not such as connected to response, then confirms vehicle lost contact, judge that traffic accident occurs for vehicle.Therefore, the smart machine on vehicle
After the inquiry message for receiving server end transmission, need to send current acceleration, speed, position letter from trend server end immediately
Breath.
If after server end analyzes the vehicle position information received, judging that vehicle is on highway,
And the accident information that sends of smart machine on received server-side to vehicle or through judging traffic accident occurs, then server
It holds and warning information is sent to the smart machine in accident vehicle front vehicle.
When whether accident occurs to vehicle and judging：
（1）Because vehicle during high speed uplink is sailed, either at the uniform velocity advance or Easy abeadl or accelerate advance, add
The normal variation of speed should be more stable, and location information is also changed always, and in the event of great
Accident, acceleration can increased dramatically in a short time, then become cancellation rapidly, meanwhile, speed also can drastically and unordered variation
It is reduced to zero rapidly afterwards.Therefore, if smart machine is monitored analysis to the information of acquisition, if acceleration and/or speed
The acute variation more than given threshold occurs, and becomes cancellation rapidly, then device-to-server sends accident information, server root
According to vehicle position information, judge whether on a highway, if judging accident occurs.
（2）Cause not running in the smart machine short time since serious accident may occur, no normal direction server section
Information is sent, therefore, when smart machine is monitored analysis to the information of acquisition, if acceleration and/or speed occur to surpass
The acute variation of given threshold is crossed, then sends exception information to server end immediately, the rule sent without following timing.
At this point, server end can be according to the exception information of reception, the smart machine on vehicle sends inquiry message, if got
The response that smart machine is sent on vehicle then confirms whether vehicle occurs accident by inquiring；If repeatedly send information not
The response that sends of smart machine on vehicle is obtained, and after exception information is received, vehicle lost contact quickly then judges thing occurs
Therefore.
（3）Acceleration, speed, the location information that smart machine timing on received server-side vehicle is sent, at the same it is right
The information received is analyzed in real time, if within the time of setting, is not received by information of vehicles, immediately to Vehicular intelligent equipment
Inquiry message is sent, is not such as connected to response, then judges vehicle lost contact, confirms that vehicle sends traffic accident.
If server end judges traffic accident occurs, server end is to the smart machine in accident vehicle front vehicle
Send warning information or congestion information.Because being both provided with smart machine in each car, therefore, server end is according to current accident
Location information, the location information on accident ground is rearward sent into the vehicle in setting range, apart from accident vehicle away from
From information, according to the estimated temporal information for reaching accident spot of the speed of current vehicle, current vehicle also can be transmitted apart from accident
Any desired information such as the vehicle fleet size in the distance in place.And in above-mentioned setting range, then refer to it is preset away from
Region from accident spot setpoint distance.Congestion information keeps count of including vehicle in incident area, follow-up each trolley passes through
The time that may be needed.In the case that zero defects occurs, the current feelings of current highway can also be pushed to smart machine end
Condition includes the Density Distribution of preamble vehicle, reaches the estimated time etc. of a certain target point.Each trolley, which can be monitored, simultaneously is
No hypervelocity.
Above-mentioned accident releases, and after traffic recovers normal, then server end can also be set to the intelligence for having sent warning information
Preparation send the information for releasing early warning.
Smart machine is to be equipped with alignment sensor, acceleration transducer, acceleration transducer, wireless communication module just
Take the smart machine of formula intelligent movable equipment or fixed installation inside the vehicle.Smart machine can be nowadays in the present invention
Very universal is equipped with velocity sensor, alignment sensor, the mobile phone of acceleration transducer, or equipped with the sensor
Tablet or the smart machine that is exclusively provided on vehicle.
The present invention also provides a kind of expressway chain collision early warning systems, and for the method for application the invention described above, it includes：
Smart machine on vehicle, for gathering and periodically being sent to server end acceleration, speed, the position letter of current vehicle
Breath, accident information, normal information, exception information, while for receiving the warning information of server transmission, congestion information；
Server end, for receive smart machine send in real time vehicle position information, speed, acceleration, exception information, thing
Therefore information, and combining position information, accident information and information is in communication with each other with vehicle, judge whether that traffic accident occurs,
During to being judged as occurring traffic accident, server end sends warning information to smart machine.
（1）When smart machine on vehicle analyzes the acceleration and speed that monitor in real time, if acceleration or
Drastic change occurs for speed, then exception information is sent to server-side immediately, if vehicle recovers normal again in the short time after drastic change
Traveling then sends to server end and recovers normal information；
（2）Itself acceleration of the smart machine according to detection, speed, analyze acceleration and speed, such as in real time
Fruit acceleration and/or velocity variations are beyond the threshold range set, and the two becomes cancellation in very short time, then judges to occur
Accident sends accident information to server end；
（3）Acceleration, speed, the location information that smart machine timing on received server-side vehicle is sent, while to receiving
To information analyze in real time, if within the time of setting, be not received by information of vehicles, immediately to Vehicular intelligent equipment send
Inquiry message is not such as connected to response, then judges vehicle lost contact, confirms that vehicle sends traffic accident.
Therefore, during the present invention is above-mentioned, the function at smart machine end has：
1st, acceleration, speed, the location information of itself are gathered, and timing is sent to server end.
2nd, according to the mutation of self-acceleration, speed etc., tentatively judge whether self-condition is normal, decision condition：If
Acceleration is drastically mutated, and is strongly reduced with speed, and both becomes zero quickly.Tentatively it is judged as that accident occurs, just
Accident information is sent to server end.
3rd, when accident occurs, smart machine damage is likely to result in, no normal direction server sends information, so,
As long as acceleration generates drastic change it is necessary to send exception information to server immediately.
4th, smart machine end is after server sends exception information, if acceleration and speed do not have to become 0 in the short time,
And normal condition is restored to, it is sent to server recover normal state information at this time.
5th, accident occurs for other vehicles, influences whether current vehicle, and smart machine can automatically receive server and send
Warning information, after receiving warning information, send a warning, in time remind driver pay attention to front accident.
Server side functionality：
1st, the information sent at smart machine end is received, judges vehicle whether on a highway.
2nd, after receiving the exception information that vehicle is sent, switch to immediately with the smart machine real-time Communication for Power on vehicle, until
Confirm that vehicle is normal or accident.
3rd, the information of Vehicular intelligent equipment end is not received before the deadline, sends inquiry message, can not receive reply,
It can be judged as accident.
4th, every situation for being judged as accident and occurring, determines the location information that accident occurs, analyzes impacted vehicle（Thing
Therefore vehicle rear car）, warning information is sent to these vehicles.
5th, the smart machine in accident vehicle front vehicle sends incident area congestion information.Congestion information includes accident
Vehicle keeps count of in region, vehicle passes through the possible time needed.
6th, in the case that zero defects occurs, the passage situation of current highway, bag can also be pushed to smart machine end
The Density Distribution of preamble vehicle is included, reaches the estimated time etc. of a certain target point.
7 at the same server end can monitor whether each trolley exceeds the speed limit, also can to vehicle send overspeed warning.
8 at the same can also to relevant department provide freeway network running state information, realize freeway traffic data
Acquisition and management, improve expressway safety monitoring, emergency guarantee, Emergency decision and emergency evacuation ability.
Claims (9)
1. expressway chain collision method for early warning, it is characterised in that：
Smart machine on vehicle monitors acceleration, speed, the location information of itself in real time, and timing is sent to these information
Server end；Meanwhile the smart machine on vehicle analyzes the acceleration and speed that monitor in real time, if acceleration or
Drastic change occurs for speed, then exception information is sent to server-side immediately, if vehicle recovers normal again in the short time after drastic change
Traveling then sends to server end and recovers normal information；If smart machine analyzes and determines that accident occurs for vehicle, immediately to service
Device end sends accident information；
After the exception information that smart machine on received server-side to vehicle is sent, the smart machine hair on vehicle is received
Before the information for the recovery normally travel sent, the smart machine on vehicle sends inquiry message in real time, if the information sent
Response is not received, then judges vehicle lost contact, confirms that vehicle sends traffic accident；
After if server end analyzes the vehicle position information received, judge that vehicle is on highway, and take
Business device termination receives the accident information of the smart machine transmission on vehicle or through judging traffic accident occurs, then server end root
Judge vehicle heading according to the location information received, early warning letter is sent to the smart machine in accident vehicle front vehicle
Breath.
2. chain collision method for early warning in expressway according to claim 1, it is characterised in that：
Itself acceleration of the smart machine according to detection, speed, analyze acceleration and speed in real time, if plus
Speed and/or velocity variations are beyond the threshold range set, and the two becomes cancellation in very short time, then judge thing occurs
Therefore send accident information to server end；
Acceleration, speed, the location information that smart machine timing on received server-side vehicle is sent, while to receiving
Information is analyzed in real time, if within the time of setting, is not received by information of vehicles, sends inquire to Vehicular intelligent equipment immediately
Information is not such as connected to response, then judges vehicle lost contact, confirms that vehicle sends traffic accident.
3. chain collision method for early warning in expressway according to claim 1, it is characterised in that：The smart machine is to be equipped with
Alignment sensor, acceleration transducer, acceleration transducer, the Portable movable smart machine of wireless communication module or fixation
The smart machine of installation inside the vehicle.
4. chain collision method for early warning in expressway according to claim 1, it is characterised in that：The server end is simultaneously to thing
Therefore the smart machine on rear view of vehicle vehicle sends incident area congestion information, sends early warning to the smart machine of involved area
Information.
5. chain collision method for early warning in expressway according to claim 4, it is characterised in that：The congestion information includes accident
Number of vehicles, follow-up each trolley pass through the estimated time needed in region.
6. chain collision method for early warning in expressway according to claim 1, it is characterised in that：The server end does not receive
During accident information, the passage situation of current highway is sent to smart machine, the passage situation includes the close of preamble vehicle
Degree distribution reaches the estimated time of a certain target point；Whether each trolley of server side to monitor exceeds the speed limit simultaneously.
7. expressway chain collision early warning system, which is characterized in that including：
Smart machine on vehicle, for gathering and periodically being sent to server end acceleration, speed, the position letter of current vehicle
Breath, accident information recover normal information, exception information, while for receiving the warning information of server transmission, congestion information；
Server end, for receiving the vehicle acceleration, speed, location information, exception information, accident that smart machine sends in real time
Information, and combining position information, accident information and information is in communication with each other with vehicle, judge whether that traffic accident occurs, it is right
When being judged as occurring traffic accident, server end sends warning information to smart machine.
8. chain collision early warning system in expressway according to claim 7, it is characterised in that：
（1）When smart machine on vehicle analyzes the acceleration and speed that monitor in real time, if acceleration or speed
Generation drastic change then illustrates that vehicle is abnormal, and sends exception information to server-side immediately, if vehicle in the short time after drastic change
Again recover normally travel, then sent to server end and recover normal information；
（2）Itself acceleration of the smart machine according to detection, speed, analyze acceleration and speed, such as in real time
Fruit acceleration and/or velocity variations are beyond the threshold range set, and the two becomes cancellation in very short time, then judges to occur
Accident sends accident information to server end；
（3）Acceleration that smart machine on received server-side vehicle is sent, speed, location information, while to receiving
Information is analyzed in real time, if within the time of setting, is not received by information of vehicles, sends inquire to Vehicular intelligent equipment immediately
Information is not such as connected to response, then judges vehicle lost contact, confirms that vehicle sends traffic accident.
9. chain collision early warning system in expressway according to claim 7, it is characterised in that：The smart machine is to be equipped with
Alignment sensor, acceleration transducer, acceleration transducer, the Portable movable smart machine of wireless communication module or fixation
The smart machine of installation inside the vehicle.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108986546A (en) * | 2018-08-20 | 2018-12-11 | 威马智慧出行科技（上海）有限公司 | A kind of car accident method for early warning and its server |
| CN109326142A (en) * | 2018-11-28 | 2019-02-12 | 郭永芳 | Highway prevention is knocked into the back and second accident generating system and its implementation |
| CN110021153A (en) * | 2019-04-04 | 2019-07-16 | 成都信息工程大学 | Automobile major accident alarm system and method |
| CN110827559A (en) * | 2019-10-22 | 2020-02-21 | 江苏广宇协同科技发展研究院有限公司 | Safety early warning method, device and system for highway traffic accidents |
| CN111081050A (en) * | 2019-12-26 | 2020-04-28 | 广东星舆科技有限公司 | Vehicle monitoring method and device based on high-precision positioning |
| CN112950939A (en) * | 2021-02-06 | 2021-06-11 | 武汉光庭信息技术股份有限公司 | Vehicle accident real-time early warning method and system |
| CN114038238A (en) * | 2021-11-04 | 2022-02-11 | 吉林大学 | Collision early warning system and method based on driving state of second vehicle in front |
| CN115273513A (en) * | 2022-07-23 | 2022-11-01 | 宁波市杭州湾大桥发展有限公司 | Expressway early warning information representation method and system |
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