A kind of method and system for preventing highway secondary traffic accidentTechnical field
The present invention relates to traffic safety technology fields, and in particular to a method of preventing highway secondary traffic accidentAnd system.
Background technology
Currently, China's highway total kilometrage has reached 130,000 kilometers or more, with the fast development of highway, significantlyShorten it is inter-provincial between, the time-space matrix between important city, accelerate interregional personnel, commodity, technology, information exchange speedDegree, effectively reduces production and transport cost, effective distribution of resources is realized in greater room, expanded market, looks forward to improvingIndustry competitiveness is promoted national economic development and social progress all plays an important role.Today, the speed of highway and justProfit has also come into the life of ordinary citizen, is changing the space-time idea and life style of people.
It is bright that there are highway the common roads such as speed is high, the traffic capacity is big, freight province, traffic safety not haveAobvious advantage, more and more people can preferred highways when using Vehicle emission.Vast, weather change due to ChinaChange multiterminal, high-speed transit accident also happens occasionally caused by the factors such as bad weather.Normal condition downward driving is on a highwayMotor vehicle be always held at a higher speed per hour range traveling, have a mist when encountering front in driving process and leadCause to knock into the back caused by On The Deterioration of Visibility Over or the reasons such as icy on road traffic accident when, motor vehicle driver can then reduce immediately speed.But on a highway if behind motor vehicle cannot grasp the traffic accident in front in time, Reduced Speed Now is held very muchEasily lead to the generation of secondary traffic accident；And after rear-end collision occurs, how quickly to find that alarm is also traffic administration instituteThe problem of door concern.
Invention content
The technical problem to be solved in the present invention is to overcome in the prior art, when traffic accident occurring on a highway,Usually since behind motor vehicle cannot grasp the traffic accident in front in time, Reduced Speed Now is carried out, secondary traffic thing is causedTherefore generation, and after rear-end collision occurs, the problems such as cannot finding in time and carry out early warning.
According in a first aspect, an embodiment of the present invention provides a kind of method for preventing highway secondary traffic accident, wrapIt includes：Obtain the travel speed of the first motor vehicle and the second motor vehicle on highway, first motor vehicle and second machineMotor-car is located at identical track and travels successively, and first motor vehicle is before second motor vehicle；Judge that described second is motor-drivenWhether the travel speed of vehicle is more than the travel speed of first motor vehicle；When the travel speed of second motor vehicle is more than instituteWhen stating the travel speed of the first motor vehicle, the spacing value between first motor vehicle and second motor vehicle is calculated；According toThe travel speed of first motor vehicle and second motor vehicle calculates safe distance between vehicles value；Judge whether the spacing value is smallIn the safe distance between vehicles value；When the spacing value is less than the safe distance between vehicles value, first motor vehicle and the second machine are judgedWhether the travel speed of motor-car is mutated；When the travel speed of first motor vehicle and the second motor vehicle mutates,Judge the generation rear-end collision of first motor vehicle and the second motor vehicle, and generates warning information；The warning information is sent outIt send to being shown in the display device of the highway.
With reference to first aspect, in the first embodiment of first aspect, obtain highway on the first motor vehicle andBefore the travel speed of second motor vehicle, the method for preventing highway secondary traffic accident further includes：It is handed over according to historyLogical accident information obtains each rear-end collision and takes place frequently section, and starts monitoring device and monitor each rear-end collision and take place frequently the machine in sectionMotor-car.
With reference to first aspect, described to be obtained according to historical traffic accident information in the second embodiment of first aspectEach rear-end collision takes place frequently section, including：Rear-end collision information is obtained from the historical traffic accident information；According to describedPosition occurs for each rear-end collision of rear-end collision acquisition of information；Position occurs to each rear-end collision by big data algorithm to uniteMeter obtains each rear-end collision and takes place frequently section.
With reference to first aspect, in the third embodiment of first aspect, it is described calculate first motor vehicle with it is describedSpacing value between second motor vehicle, including：Obtain the first traveling location information of first motor vehicle；Obtain described secondSecond traveling-position information of motor vehicle；Location information is travelled according to described first and the second traveling-position information calculates instituteState spacing value.
With reference to first aspect, described according to first motor vehicle and described in the 4th embodiment of first aspectThe travel speed of second motor vehicle calculates safe distance between vehicles value, including：According to the relationship of preset travel speed and braking distance, obtainTake the safety shut-down distance value under the travel speed in second motor vehicle；According to default skidding time and describedThe travel speed of first motor vehicle calculates the operating range value of first motor vehicle；
Safe distance between vehicles value is calculated according to the operating range value of the safety shut-down distance value and first motor vehicle.
With reference to first aspect, in the 5th embodiment of first aspect, the warning information includes：Described first is motor-drivenThe traveling-position information of vehicle and second motor vehicle, traveling lane information.
With reference to first aspect, in the sixth embodiment of first aspect, it is public that the display device is set to the high speedThe inlet on road
According to second aspect, an embodiment of the present invention provides a kind of system for preventing highway secondary traffic accident, packetsIt includes：Driving information acquisition module, the travel speed for obtaining the first motor vehicle and the second motor vehicle on highway, describedOne motor vehicle and second motor vehicle are located at identical track and travel successively, first motor vehicle second motor vehicle itBefore；First traveling velocity estimated module, for judging it is motor-driven whether the travel speed of second motor vehicle is more than described firstThe travel speed of vehicle；Spacing value computing module, when the travel speed of second motor vehicle is more than the row of first motor vehicleWhen sailing speed, the spacing value computing module is used to calculate the spacing between first motor vehicle and second motor vehicleValue；Safe distance between vehicles value computing module calculates peace for the travel speed according to first motor vehicle and second motor vehicleFull spacing value；Drive safely judgment module, for judging whether the spacing value is less than the safe distance between vehicles value；Spacing value judgesModule, when the spacing value is less than the safe distance between vehicles value, the spacing value judgment module is for judging the spacingAt the time of whether value occurs being reduced to 0；Second travel speed judgment module, at the time of the spacing value is reduced to 0 after, instituteThe second travel speed judgment module is stated for judging whether the travel speed of first motor vehicle and the second motor vehicle drops suddenlyLow is 0；Warning information generation module, it is described when the travel speed of first motor vehicle and the second motor vehicle is reduced to 0 suddenlyWarning information generation module is used to judge the generation rear-end collision of first motor vehicle and the second motor vehicle, and generates early warning letterBreath；Display device acquisition module, the position for obtaining the generation rear-end collision are located in this position according to the position acquisitionSwim the display device in section；Early warning display module is shown for the warning information to be sent in the display device.
It is described to deposit an embodiment of the present invention provides a kind of electronic equipment, including memory and processor according to the third aspectConnection is communicated between reservoir and the processor, computer instruction is stored in the memory, and the processor passes throughThe computer instruction is executed, it is described pre- in any one optional mode to execute first aspect or first aspectThe method of anti-highway secondary traffic accident.
It is described computer-readable an embodiment of the present invention provides a kind of computer readable storage medium according to fourth aspectStorage medium stores computer instruction, and the computer instruction is for making the computer execute first aspect or first aspectAny one optional mode in the described prevention highway secondary traffic accident method.
Technical solution of the present invention has the following advantages that：
The method provided in an embodiment of the present invention for preventing highway secondary traffic accident, by obtaining and judging that high speed is publicThe travel speed magnitude relationship of the adjacent motor vehicle of road calculates the vehicle between two vehicles when rear car travel speed is more than front truckAway from value, and the safe distance between vehicles value in two workshops is calculated, whether then judge spacing value less than safe distance between vehicles value, if it is less than then judgingWhether two vehicles there is the mutation of travel speed, if there is then judging that two vehicles have occurred rear-end collision, generate warning information, and willIt is shown in the display device that the warning information passes through highway.To realize the hair to take place frequently on section in traffic accidentTimely early warning is carried out when raw traffic accident, is ensured the safety trip of other driving vehicles of section, is avoided secondary traffic accident,And it assists vehicle supervision department to find traffic accident information in time, improves the efficiency of vehicle supervision department's accident treatment.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior artEmbodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described belowAttached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative laborIt puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the flow chart for the method for preventing highway secondary traffic accident in the embodiment of the present invention；
Fig. 2 is another flow chart for the method for preventing highway secondary traffic accident in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram for the system for preventing highway secondary traffic accident in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of electronic equipment in the embodiment of the present invention.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementationExample is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skillThe every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " first ", " second ", " third " are used for description purposes only,It is not understood to indicate or imply relative importance.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each otherIt can be combined with each other at conflict.
Embodiment 1
The embodiment of the present invention provides a kind of method for preventing highway secondary traffic accident, knocks into the back on highwayIn the traffic control terminal in Frequent Accidents section, the traffic control terminal and rear-end collision take place frequently the detection device being arranged on sectionConnection, obtains the vehicle information of the sections of road.Due to climate change and by boisterous influence, in highwayRear-end collision frequent occurrence on certain sections, if after traffic rear-end collision occurs on a highway cannot timely early warning,When low visibility, icy road or driver's strain not in time, it is also easy to cause secondary traffic accident, height will be seriously affectedThe passage of fast highway, and under normal conditions when sending traffic accident, vehicle supervision department's ability after hearing accident alarmingIt can learn the place that accident occurs, this can also influence the efficiency of vehicle supervision department's processing traffic accident.Traveling is in highwayOn motor vehicle quickly understand front road conditions, be to ensure that the key of safety traffic, such as take place frequently section in a mist, traffic have occurredAccident, rear motor vehicle understand the position that accident occurs not in time, and occupied track is very easy to that second accident is caused to be sent outIt is raw.The method of prevention highway secondary traffic accident in the embodiment of the present invention, the high speed for taking place frequently to rear-end collision are publicRoad section is monitored, and can find traffic accident of knocking into the back in time, and generates other motor vehicles that warning information prompts the section,It is possible to prevente effectively from the generation of rear-end collision accident, assists vehicle supervision department to improve the efficiency of accident treatment.
As shown in Figure 1, the method for the prevention highway secondary traffic accident includes：
Step S1：Obtain the travel speed of the first motor vehicle and the second motor vehicle on highway, the first motor vehicle and theTwo motor vehicles are located at identical track and travel successively, and the first motor vehicle is before the second motor vehicle.
Motor vehicle to entering highway is monitored, if two motor vehicles are gone successively before and after being located at same trackIt sails, before judging whether two motor vehicles occur rear-end collision, needs the travel speed to this two motor vehicles to be monitored, beIt is follow-up to judge whether two motor vehicles occur rear-end collision and provide data basis.And when the travel speed of the second motor vehicle is more thanWhen the travel speed of the first motor vehicle, the first motor vehicle and the second motor vehicle just have rear-end collision can occur, therefore are obtainingStep S2 is executed after the travel speed of first motor vehicle and the second motor vehicle.
Step S2：Judge whether the travel speed of the second motor vehicle is more than the travel speed of the first motor vehicle.
If the travel speed of the second motor vehicle is less than the travel speed of the first motor vehicle, illustrate this two motor vehicles notRear-end collision can occur, if the travel speed of the second motor vehicle be more than the first motor vehicle travel speed, need to this twoPlatform motor vehicle is further monitored, and needs further to judge, is executed step S3, is otherwise continued to monitor this two motor vehiclesTravel situations.
Step S3：Calculate the spacing value between the first motor vehicle and the second motor vehicle.
When the travel speed of the second motor vehicle is more than the travel speed of the first motor vehicle, need to calculate this two motor vehiclesBetween spacing value, obtain first the first motor vehicle first traveling location information, then obtain the second row of the second motor vehicleLocation information is sailed, and spacing value is calculated according to the first traveling location information and the second traveling-position information.Specifically, the first travelingLocation information and the second traveling-position information are distance value of the motor vehicle apart from the Frequent Accidents section entrance, two distance valuesDifference be spacing value between two motor vehicles, then execute step S4.
Step S4：According to the travel speed of the first motor vehicle and the second motor vehicle, safe distance between vehicles value is calculated.
After the spacing value between obtaining two motor vehicles, in order to judge whether two motor vehicles can occur rear-end collision,It also needs to calculate the safe distance value between two motor vehicles.First according to the relationship of preset travel speed and braking distance, obtainTake the safety shut-down distance value under travel speed in the second motor vehicle, the travel speed of usual motor vehicle is faster, and its is requiredBraking distance is longer, can be stated with functional relation between travel speed and braking distance, according to preset functional relation andThe current travel speed of second motor vehicle can be obtained its required safety shut-down distance value；Then according to default skiddingThe travel speed of time and the first motor vehicle calculates the operating range value of the first motor vehicle, and every motor vehicle is from brake is started to machineMotor-car stops needing certain skidding time completely, which calculates the first motor line in the braking timeThe distance value sailed；Then safe distance between vehicles value is calculated according to the operating range value of safety shut-down distance value and the first motor vehicle, it is motor-drivenDifference between vehicle safety shut-down distance value and the operating range value of the first motor vehicle is the first motor vehicle and the second motor vehicleBetween safe distance between vehicles value.Then step S5 is executed.
Step S5：Judge whether spacing value is less than safe distance between vehicles value.
Judging whether two motor vehicles knock into the back traffic accident, need to judge spacing value between two motor vehicles withRelationship between safe distance between vehicles value, if when the spacing value between the second motor vehicle and the first motor vehicle is less than safe distance between vehicles value,Then there is the risk for traffic accident of knocking into the back in this two motor vehicles of service life, then execution step S6, otherwise continue to monitor this twoThe travel situations of platform motor vehicle.
Step S6：At the time of judging whether spacing value occurs being reduced to 0.
In practical applications, two motor vehicles knock into the back traffic accident when, the spacing value meeting between two motor vehicles are straightZero is suddenly become, it therefore, can be by judging whether two motor vehicles spacing value occur and the case where being reduced to 0 occur to judge to beNo traffic accident of knocking into the back executes step S7 if spacing value occurs being reduced to 0, otherwise continues to monitor motor vehicleDriving trace.
Step S7：Judge whether the travel speed of the first motor vehicle and the second motor vehicle is reduced to 0 suddenly.
In practical applications, two motor vehicles knock into the back the moment of traffic accident, the travel speed meeting of two motor vehiclesIt mutates, the travel speed of the second motor vehicle is reduced in a flash the travel speed of the zero, while first motor vehicle at this also can beIt mutates in short time, then reduction of speed is zero.It therefore, can be by judging it is unexpected whether two motor vehicles travel speed occur0 is reduced to determine whether traffic accident of knocking into the back, the mutation in case of travel speed thens follow the steps S8, otherwise afterThe travel speed of the first motor vehicle of continuous monitoring and the second motor vehicle.
Step S8：Judge the generation rear-end collision of the first motor vehicle and the second motor vehicle, and generates warning information.
If the travel speed of the first motor vehicle and the second motor vehicle all has occurred in the travel speed short time and becomes zero,Illustrate that traffic rear-end collision has occurred in this two motor vehicles, corresponding warning information, the early warning are generated according to traffic rear-end collisionInformation includes the traveling-position information of the first motor vehicle and the second motor vehicle, traveling lane information etc., illustrates this two motor vehiclesIt knocks into the back the specific location of traffic accident in the traffic accident section that takes place frequently, and the track occupied, is vehicle supervision departmentThe accurate location of the traffic accident of offer, while providing early warning, example for take place frequently other motor vehicles of sections of road of the traffic accidentSuch as traffic accident take place frequently section entrance 100 meters of front at, third lane occur accident occupancy, ask timely Reduced Speed Now and keep awayAllow accident motor vehicle.After generating warning information, step S9 is executed.
Step S9：The position for obtaining the generation rear-end collision is located at the display for swimming section in this position according to position acquisitionDevice.
In practical applications, the traveling-position letter of the first motor vehicle and the second motor vehicle can be obtained from warning informationBreath, traveling lane information etc., then obtain the information of the display device of the accident section upstream according to the position of rear-end collision.
Step S10：Warning information is sent in display device and is shown.
In order to allow take place frequently other motor vehicles of sections of road of the traffic accident to grasp traffic accident information in time, carry outReduced Speed Now avoids accident vehicle, and the warning information of generation can be sent to the traffic accident and taken place frequently the display device in sectionOn shown.The display device is set to rear-end collision and takes place frequently the inlet in section, can be LED display, this is aobvious in additionSpeech play warning information can also be set on showing device, for drive into the traffic accident take place frequently section motor vehicle carry out early warning.
By executing above-mentioned step S1 to step S10, the secondary traffic of prevention highway provided in an embodiment of the present inventionThe method of accident realizes the progress timely early warning when traffic accident takes place frequently the generation traffic accident on section, ensures the roadThe safety trip of other driving vehicles of section, avoids secondary traffic accident, and vehicle supervision department is assisted to find traffic thing in timeTherefore information, improve the efficiency of vehicle supervision department's accident treatment.
As other further embodiments, as shown in figure 3, the first motor vehicle and the second machine on obtaining highwayBefore the travel speed of motor-car, the method for the prevention highway secondary traffic accident further includes：
Step S11：Each rear-end collision is obtained according to historical traffic accident information to take place frequently section, and starts monitoring device monitoringEach rear-end collision takes place frequently the motor vehicle in section.
Specifically, in one embodiment, each rear-end collision is obtained according to historical traffic accident information to take place frequently section, including：Rear-end collision information is obtained from historical traffic accident information, vehicle supervision department is by handing over the history occurred on highwayRear-end collision information in logical accident information extracts；Then position is occurred according to each rear-end collision of rear-end collision acquisition of informationIt sets；Position occurs to each rear-end collision by big data algorithm to count, obtains each rear-end collision and takes place frequently section, due to certainFastlink is influenced by factors such as its location, weathers, and the probability for traffic accident of knocking into the back is relatively high, by theseThe section that rear-end collision takes place frequently is monitored as monitoring section, both can effectively be utilized traffic administration resource, can also be led toCross the early warning of traffic accident so that rear-end collision takes place frequently section after traffic accident occurs, and can quickly find, and in time intoRow early warning.
Embodiment 2
A kind of system for preventing highway secondary traffic accident is provided in the present embodiment, as shown in figure 3, prevention high speedThe system of highway secondary traffic accident includes：
Driving information acquisition module 1, the travel speed for obtaining the first motor vehicle and the second motor vehicle on highway,First motor vehicle and the second motor vehicle are located at identical track and travel successively, and the first motor vehicle is before the second motor vehicle.In in detailHold the step S1 in reference implementation example 1.
First traveling velocity estimated module 2, for judging whether the travel speed of the second motor vehicle is more than the first motor vehicleTravel speed.Step S2 in detailed content reference implementation example 1.
Spacing value computing module 3, when the travel speed of the second motor vehicle is more than the travel speed of the first motor vehicle, spacingValue computing module 3 is used to calculate the spacing value between the first motor vehicle and the second motor vehicle.In detailed content reference implementation example 1Step S3.
Safe distance between vehicles value computing module 4 calculates safety for the travel speed according to the first motor vehicle and the second motor vehicleSpacing value.Step S4 in detailed content reference implementation example 1.
Drive safely judgment module 5, for judging whether spacing value is less than safe distance between vehicles value.Detailed content reference implementation exampleStep S5 in 1.
Spacing value judgment module 6, when spacing value is less than safe distance between vehicles value, spacing value judgment module 6 is for judging spacingAt the time of whether value occurs being reduced to 0.Step S6 in detailed content reference implementation example 1.
Second travel speed judgment module 7, at the time of spacing value is reduced to 0 after, the second travel speed judgment module 7For judging whether the travel speed of the first motor vehicle and the second motor vehicle is reduced to 0 suddenly.In detailed content reference implementation example 1Step S7.
Warning information generation module 8, when the travel speed of the first motor vehicle and the second motor vehicle is reduced to 0 suddenly, early warningInformation generating module 8 is used to judge the generation rear-end collision of the first motor vehicle and the second motor vehicle, and generates warning information.In detailStep S8 in content reference implementation example 1.
Display device acquisition module 9, the position for obtaining the generation rear-end collision are located at the position according to position acquisitionThe display device in upstream section.Step S9 in detailed content reference implementation example 1.
Early warning display module 10 is shown for warning information to be sent in display device.Detailed content is with reference to realApply the step S10 in example 1.
Pass through the cooperative cooperating of above-mentioned each component part, the prevention highway secondary traffic accident of the embodiment of the present inventionSystem, realize when traffic accident takes place frequently the generation traffic accident on section progress timely early warning, ensure the section itsThe safety trip of his driving vehicle, avoids secondary traffic accident, and vehicle supervision department is assisted to find that traffic accident is believed in timeBreath, improves the efficiency of vehicle supervision department's accident treatment.
Embodiment 3
The embodiment of the present invention additionally provides a kind of electronic equipment, as shown in figure 4, the electronic equipment may include processor 31With memory 32, wherein processor 31 can be connected with memory 32 by bus or other modes, to pass through bus in Fig. 4For connection.
Processor 31 can be central processing unit (Central Processing Unit, CPU).Processor 31 can be withFor other general processors, digital signal processor (Digital Signal Processor, DSP), application-specific integrated circuit(Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,The combination of the chips such as discrete hardware components or above-mentioned all kinds of chips.
Memory 32 is used as a kind of non-transient computer readable storage medium, can be used for storing non-transient software program, non-Transient computer executable program and module, such as the method for the prevention highway secondary traffic accident in the embodiment of the present inventionCorresponding program instruction/module, processor 31 by run storage non-transient software program in memory 32, instruction andModule realizes that the prevention in above method embodiment is high to execute various function application and the data processing of processorThe method of fast highway secondary traffic accident.
Memory 32 may include storing program area and storage data field, wherein storing program area can storage program area,At least one required application program of function；Storage data field can store the data etc. that processor 31 is created.In addition, storageDevice 32 may include high-speed random access memory, can also include non-transient memory, for example, at least a magnetic disk storagePart, flush memory device or other non-transient solid-state memories.In some embodiments, it includes relative to place that memory 32 is optionalThe remotely located memory of device 31 is managed, these remote memories can pass through network connection to processor 31.The reality of above-mentioned networkExample includes but not limited to internet, intranet, LAN, mobile radio communication and combinations thereof.
One or more module stores in memory 32, when being executed by processor 31, executes and implements as shown in Figure 1The method of prevention highway secondary traffic accident in example.
Above-mentioned traffic control terminal detail can correspond to refering to fig. 1 shown in embodiment corresponding associated description andEffect is understood that details are not described herein again.
It is that can lead to it will be understood by those skilled in the art that realizing all or part of flow in above-described embodiment methodCross computer program and completed to instruct relevant hardware, program can be stored in a computer read/write memory medium, shouldProgram is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, storage medium can be magnetic disc, it is CD, read-onlyIt is storage memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), fastFlash memory (Flash Memory), hard disk (Hard Disk Drive, abbreviation：) or solid state disk (Solid-State HDDDrive, SSD) etc.；Storage medium can also include the combination of the memory of mentioned kind.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is rightFor those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation orIt changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation orIt changes still within the protection scope of the invention.