CN107293142A - Transport information active push method and system based on LBS - Google Patents
Transport information active push method and system based on LBS Download PDFInfo
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- CN107293142A CN107293142A CN201710499818.6A CN201710499818A CN107293142A CN 107293142 A CN107293142 A CN 107293142A CN 201710499818 A CN201710499818 A CN 201710499818A CN 107293142 A CN107293142 A CN 107293142A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
- G08G1/09675—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where a selection from the received information takes place in the vehicle
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/52—Network services specially adapted for the location of the user terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/55—Push-based network services
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Abstract
The present invention discloses a kind of transport information active push method based on LBS, including：Gather transport information；The Data Structures of transport information sequence are set up with reference to the transport information；Calculate information sequence update times；Generate transport information and recommend sequence；Generate transport information play sequence；Push and show the transport information play sequence.Present invention also offers a kind of transport information active pushing system based on LBS.In the present invention; judge whether whether driver take in the range of the daily routines and close to trip purpose different push strategies according to driver history track position data and current GPS location; determine that information sequence plays priority and display intensity; the transport information sequence formation transport information chosen with reference to steric requirements on the association section of front recommends sequence MS, and plays transport information play sequence MS ' according to according to road section length, the travel speed of existing object vehicle, information updating time and broadcast strategy.
Description
Technical field
The present invention relates to car networking technology field.More particularly, to a kind of transport information active push side based on LBS
Method and system.
Background technology
In recent years, with the development of the communication technology and sensor technology, car networking technology turns into the research of field of traffic
Focus.Car networking (Internet of Vehicles) is the huge interaction by information structures such as vehicle location, speed and routes
Network, it can complete itself environment and state letter by the devices such as GPS, RFID, sensor, camera image processing, vehicle
The collection of breath；By Internet technology, the various information transfers of itself can be converged to central processing unit by all vehicles；It is logical
Cross computer technology, the information of these a large amount of vehicles can be analyzed and processed, thus calculate the best route of different vehicle,
Report without delay road conditions and arrange signal lamp cycle.Car networking technology can realize the category to all vehicles on information network platform
Property information and dynamic and static information, extract and effectively utilization, and according to operation shape of the different functional requirements to all vehicles
State is carried out effectively supervising and providing integrated service, and sense of the driver to surrounding environment can be effectively improved using car networking technology
Know, the information such as traffic behavior, road conditions are obtained in real time.
According to statistics, the life ＆ amusement of people 80% and position are closely bound up, driver couple and position especially in way is driven
Put relevant information more urgent.However, can be full of substantial amounts of transport information around moving process in vehicle, driver is impossible
There are enough energy and times to go to pay close attention to each information when driving；And vehicle translational speed is fast, causes at one section
Limited information is only possible in section to be recommended.At present, based on drive sublimity transport information active push mainly by
Traffic control department is unified to issue, and this mode, which exists, does not combine the location of driver information fully, and the information of push is single, owes
Lack the deficiencies such as specific aim.
Location Based service (Location Based Service, LBS) refers to the nothing by telecommunications mobile operator
Line electricity communication network or outside positioning method, obtain the positional information of mobile terminal user, under the support of GIS platform, for
Family provides a kind of value-added service of respective service.Because it has coverage rate high and the features such as positioning precision is high, increasingly by
Concern.
Accordingly, it is desirable to provide a kind of transport information active push method and system based on LBS, use for reference internet information and push away
Whether the thought recommended, with reference to driver history driving trace, currently go on a journey to be located in the range of go off daily for driver and take
Different push strategies.
The content of the invention
It is an object of the present invention to provide a kind of transport information active push method based on LBS, basis first is driven
The person's of sailing historical track position data and current GPS location judge driver whether in the range of the daily routines and whether
Different push strategies are taken close to trip purpose, determine that information sequence plays priority and display intensity；Secondly combine
The transport information sequence formation transport information that steric requirements is chosen on the association section of front recommends sequence MS；Last foundation is according to road
Segment length, the travel speed of existing object vehicle, information updating time and broadcast strategy play transport information play sequence MS '.
To reach above-mentioned purpose, the present invention uses following technical proposals：
A kind of transport information active push method based on LBS, including：
Transport information is gathered, transport information includes driving information and information on services；
The Data Structures of transport information sequence are set up with reference to transport information；
Calculate information sequence update times；
Generate transport information and recommend sequence；
Generate transport information play sequence；
Push and show transport information play sequence.
Preferably, driving information includes subject vehicle driving information and other vehicle traveling informations, wherein subject vehicle row
Sail information and other vehicle traveling informations includes car speed, acceleration, direction and positional information respectively.
Preferably, the Data Structures of transport information sequence include：
Driver Traveler (j)={ xT,yT,tT,vT,dT, wherein, (xT,yT) represent vehicle location coordinate, tTRepresent
The traveling moment of vehicle currently, vTRepresent the current travel speed of vehicle, dTRepresent the travel direction of vehicle；J=0,1,2 ...,
M, M represent the driver's number communicated by truck traffic with subject vehicle, and Traveler (0) represents the position of subject vehicle
Trace information, Traveler (j) are put, j ≠ 0 represents to carry out the position of communication association driver with subject vehicle by truck traffic
Trace information；
Road information R (i)={ xR,yR,lR, wherein, (xR,yR) position coordinates of electronic map of automobile navigation road waypoint is represented,
lRThe length in subject vehicle traveling front association section is represented, unit is rice, and i=0,1,2 ..., N, N represents front section bar
Number, R (0) represents that subject vehicle is currently located section, R (i), and i ≠ 0 represents that subject vehicle is currently located section association section；
Transport information sequence M={ xM,yM,cM,tM,Li, wherein, (xM,yM) represent production transport information sequence position
Put coordinate；cMRepresent the particular content of transport information sequence；tMRepresent the duration of transport information sequence, LiRepresent the traffic
The grade of information sequence；
The pre- play sequence Message={ x, y, c, t, L, Distance, Strength, Number } of transport information, wherein,
(x, y) represent production transport information sequence position coordinates；C represents the particular content of transport information sequence；T represents that traffic is believed
Cease the duration of sequence, L represents the grade of the transport information sequence, Distance represent transport information sequence grown place with it is right
As the distance of vehicle location, Strength represents to show intensity, and Number represents actual play number of times.
It is further preferred that calculating information sequence update times includes：
Subject vehicle is calculated in the running time T being currently located on section1, wherein, T1=R (0) .lR/vT；
Calculate information updating time T2；
From current time tTRise, with information updating time T2To be spaced subject vehicle in the traveling being currently located on section
Time T1Divided, form K information sequence renewal time section, each period can only play 1 transport information and play sequence
Row, wherein, K=int (T1/T2)。
Preferably, generation transport information recommends sequence to include：
Based on the corresponding transport information sequence of Policy Filtering is pushed, specifically, using driver information database, look into
History driving trace is looked for infer that current driving location, close to destination, takes different transport information sequences to push strategy；
Transport information sequence is screened based on position, generation transport information recommends sequence, specifically, current according to subject vehicle
Positional information (xT,yT), travel direction dTAnd transport information sequence grown place (xM,yM), filter out on the association section of front
Transport information sequence, wherein,
Preferably, generation transport information play sequence includes：
Determine to show strength S trength based on broadcast strategy, using driver information database, search history traveling rail
Mark judges that current driving road segment whether there is in existing driver information database, determines currently whether trip is located at driver
In the range of go off daily, different transport information broadcast strategies are taken；
Sequence is recommended based on broadcast strategy and transport information, transport information play sequence is generated, from current time tTRise,
Transport information sequence is integrated in batches according to grade, the transport information sequence of same grade is according to its grown place and Current vehicle
Apart from Distance sequence, until all transport information sequences filtered out according to display strength S trength play.
Preferably, in addition to information updating time T is judged2It is interior to play the whole of transport information play sequence,
If T2>=∑ t, then play the whole of transport information play sequence；
If T2＜ ∑ t, then calculate T2Before the interior maximum information bar number m that can be played, selection transport information play sequence
M bars are played out, wherein,
Preferably, in addition in front of calculating associate section up stroke time delays rate and send early warning, specifically include：
Section according to where positional information judges Traveler (j), and calculate and be located at all vehicles on R (i) and be averaged
Travel speedWherein,
Calculate R (i) up stroke time delays rate αi, wherein,V is R (i) speed limit；
Calculate R (i) degree of association βi, wherein,
Calculate journey time delay rate ROD of the driver in each relevant road segmentsi, wherein, RODi=αi*βi。
It is another object of the present invention to provide the transport information active pushing system based on LBS, including：
On-vehicle information collecting unit, including vehicle GPS, sensor, short-distance wireless communication module, wherein, vehicle GPS is used
In the traveling-position and directional information of acquisition target vehicle；Sensor is used for collection vehicle speed, acceleration, braking and traveling side
To information；Short-distance wireless communication module includes being used to gather running region association sections of road information and information on services, traveling
Information includes subject vehicle driving information and other vehicle traveling informations, and wherein subject vehicle driving information and other vehicles is travelled
Information includes car speed, acceleration, direction and positional information respectively；
Active push unit, the traveling ahead obtained using on-vehicle information collecting unit short-distance and medium-distance communication module associates road
The traffic state information of section, the push algorithm based on LBS is designed based on vehicle real-time position information, and the trip with reference to driver is special
Whether current trip of seeking peace is in go off daily scope, and the transport information broadcasting sequence for meeting its trip characteristics is provided for driver
Row；
Car-mounted display unit, shows transport information play sequence.
Preferably, in addition to：
Prewarning unit, using on-vehicle information collecting unit short-distance and medium-distance communication module obtain traveling ahead associate section its
The speed and track position information of his vehicle, carrying out short-term prediction to the journey time delay rate for associating section, there is provided front road
Condition warning information.
Beneficial effects of the present invention are as follows：
The transport information active push method and system based on LBS of the present invention, by obtaining real-time vehicle state itself
Whether information and real-time traffic information, be in go off daily scope, according to institute with reference to vehicle real time position and current trip
The push algorithm based on LBS of design, screening row is carried out by transport information needed for driver according to the urgent degree of operator demand
Sequence, shows time and current vehicle position with reference to available information, actively provides reasonably to go out for it based on driver's trip characteristicses
Row information.The present invention can realize that driver personalityization transport information is pushed；Take into full account the context information residing for driver, because when
Suit measures to local conditions；The problem of mobile message overload, information are competed is solved to a certain extent；Extend the information feeler of driver；Calculate
Method is easily understood.
Brief description of the drawings
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows the transport information active push method and step figure based on LBS.
Fig. 2 shows right-angled intersection road information numbering schematic diagram.
Fig. 3 shows T words intersection road information numbering schematic diagram.
Fig. 4 shows the data structure schematic diagram of transport information play sequence.
Fig. 5 shows to push policy development flow chart.
Fig. 6 shows transport information sequence grown place schematic diagram on the association section of front.
Fig. 7 shows that broadcast strategy formulates flow chart.
Fig. 8 shows to generate transport information play sequence MS ' flow charts.
Fig. 9 shows prealarming process flow chart.
Embodiment
In order to illustrate more clearly of the present invention, the present invention is done further with reference to preferred embodiments and drawings
It is bright.Similar part is indicated with identical reference in accompanying drawing.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
The present invention relates to the traffic that location-based service (Location Based Service, LBS) is based in car networking environment
Automatic information push method and system.The system obtains real-time vehicle status information itself and reality by on-vehicle information collecting unit
When traffic information, whether be in go off daily scope, active push unit root with reference to vehicle real time position and current trip
According to the designed push algorithm based on LBS, transport information needed for driver is sieved according to the urgent degree of operator demand
Gather sequence.Time and current vehicle position are shown with reference to available information, car-mounted display unit is based on driver's trip characteristicses actively
Rational trip information is provided for it.Meanwhile, communicate (Dedicated Short using on-vehicle information collecting unit short-distance and medium-distance
Range Communications, DSRC) real-time road condition information that is obtained of module, prewarning unit is to traveling association link travel
Time delays rate carries out short-term prediction, and carrying out Path selection for driver provides front road conditions warning information, and by vehicle-mounted aobvious
Show that unit is proposed to driver.This method and system can be that driver's active push Real-time Traffic Information and road conditions early warning are believed
Breath, aids in driver's real-time optimization driving path, and make scientific and reasonable traveling decision-making.
As shown in figure 1, a kind of transport information active push method based on LBS, including：Gather transport information；With reference to institute
State the Data Structures that transport information sets up transport information sequence；Calculate information sequence update times；Generation transport information is pushed away
Recommend sequence；Generate transport information play sequence；Push and show the transport information play sequence.
Specifically, whether driver is judged according to driver history track position data and current GPS location first
Different push strategies whether are taken in the range of daily routines and close to trip purpose, determine that information sequence is played excellent
First level and display intensity；Secondly the transport information sequence formation transport information on the association section of steric requirements selection front is combined
Recommend sequence MS；Last foundation is according to road section length, the travel speed of existing object vehicle, information updating time and broadcast strategy
Play transport information play sequence MS '.Transport information active push method and system based on LBS, by transport information appropriate
Driver is sent on time point, location point, the height relationships between increase driver and mobile message are experienced, extension driver's
Information feeler, can make scientific and reasonable Driving Decision-making for driver in the real-time accurate orderly transport information of acquisition, driver
Technical support is provided.
Illustrated with reference to specific embodiment
Transport information active push method based on LBS comprises the following steps：
S1：The Data Structures of transport information sequence are set up, including
1. driver Traveler (j)={ xT,yT,tT,vT,dT}
Wherein, (xT,yT) represent vehicle location coordinate, tTAnd vTThe traveling moment of vehicle currently and traveling speed are represented respectively
Degree, dTThe travel direction of vehicle is represented, using direct north as 0 degree, to increase clockwise, span is 0~360 degree；J=0,
1,2 ..., M, M represent the driver's number communicated by truck traffic with subject vehicle." Traveler (0) " expression pair
As the position locus information of vehicle, " Traveler (1), Traveler (2) ... " represents to pass through truck traffic and subject vehicle
Carry out the position locus information of communication association driver.
2. road information R (i)={ xR,yR,lR}
Wherein, (xR,yR) represent the position coordinates of electronic map of automobile navigation road waypoint, lRRepresent that subject vehicle traveling front is closed
Join the length in section, unit is rice, and i=0,1,2 ..., N, N represents front section bar number." R (0) " represents that subject vehicle is current
Place section, " R (1), R (2) ... " represents that subject vehicle is currently located section association section, with label counterclockwise.With cross
Exemplified by intersection, it numbers as shown in Figure 2；By taking T-shape intersection as an example, it numbers as shown in Figure 3.
3. transport information sequence M={ xM,yM,cM,tM,Li}
Wherein, (xM,yM) represent production transport information sequence position coordinates；cMRepresent the specific of transport information sequence
Content, such as " there is accident in front "；tMThe duration of transport information sequence is represented, unit is minute.Normal word speed is every point
The word of clock 100, therefore the duration t of the transport information sequenceMFor Length (cM)/100。
LiRepresent the grade of the transport information sequence：1) dynamic information such as front association road section traffic volume accident, control,
Information requirement grade highest, labeled as L1；2) the front association dynamic information such as sections of road road conditions, the level such as information requirement
It, labeled as L2；3) the static traffic information such as front association section periphery gas station, parking lot, information requirement grade is minimum, mark
It is designated as L3.
4. transport information play sequence Message={ x, y, c, t, L, Distance, Strength, Number }
Compared with transport information sequence, transport information play sequence increases by 3 attributes, other attributes and transport information sequence altogether
The expression meaning of row is consistent.Increase distance property Distance, as transport information sequence grown place and subject vehicle position
Distance, unit is rice；Increase shows Intensity attribute Strength, and be divided into high, medium and low three kinds of intensity according to push strategy marks respectively
Be designated as S1, S2, S3, respectively theory of correspondences broadcasting time be 3,2,1 time.Specifically, the high frequency within primary information renewal time
It is 3 times to spend S1 theory of correspondences broadcasting time, and middle frequency S2 theory of correspondences broadcasting time is 2 times, and low-frequency degree S3 theory of correspondences is played
Number of times is 1 time；Increase actual play time number attribute Number, its initial value is 0.The data structure of transport information play sequence is such as
Shown in Fig. 4：
S2：Calculate information sequence update times K
Information sequence update times are obtained according to road section length, the travel speed of existing object vehicle, information updating time
K, is specifically included：
S201：Subject vehicle is calculated in the running time T being currently located on section1, wherein,
T1=R (0) .lR/vT；
S202：Calculate information updating time T2, the generally renewal of the information such as map software real-time road such as Baidu
Time is 5 minutes；
S203：When subject vehicle is longer in current road segment running time, for ensure transport information sequence when
Effect property, from current time tTRise, with information updating time T2To be spaced subject vehicle in the running time being currently located on section
T1Divided, form K information sequence renewal time section, each period can only play 1 transport information play sequence, its
In, K=int (T1/T2)。
S3：Generate transport information and recommend sequence MS
The specified context being presently in based on driver, according to strategy is pushed, is pushed away with reference to steric requirements formation transport information
Sequence MS is recommended, is specifically included：
S301：Based on the push corresponding transport information sequence of Policy Filtering
Using driver information database, search history driving trace and infer that current driving location, close to destination, is taken
Different transport information sequences pushes strategy.Push policy development flow as shown in Figure 5.
In the present embodiment, it is L1 and traveling road in traveling way, pushing the Traffic volume levels such as traffic accident, control
The transport need such as condition grade is L2 dynamic information；For the driver close to trip purpose ground, push parking lot and stop
The Traffic volume levels such as parking stall are L3 information.
S302：Transport information sequence is screened based on position, generation transport information pushes sequence MS
According to subject vehicle current location information (xT,yT), travel direction dTAnd transport information sequence grown place (xM,
yM), filter out the transport information sequence on the association section of front.By taking cross junction as an example,
The transport information sequence on the section of front is screened according to following formula,
The transport information sequence on association section is screened according to following formula,
To filter out the transport information sequence on the association section of front, extend the information feeler of driver.Such as Fig. 6 institutes
Show, dash area is the grown place that front associates transport information sequence on section.
Binding site and push Policy Filtering transport information sequence, generation transport information push sequence MS.Transport information
The calculation formula for pushing sequence MS is as follows.
If in traveling way, the transport information sequence MS of push is that traffic accident, control on the association section of front etc. are handed over
Logical grade is L1 and travels the dynamic information that the transport need grades such as road conditions are L2；If close to destination, the friendship of push
Logical information sequence MS is that the Traffic volume levels such as parking lot and parking stall on the association section of front are L3 information.
S4：Generate transport information play sequence MS '
Sequence MS is pushed based on transport information, transport information is generated according to the grade and broadcast strategy of transport information sequence
Play sequence MS ', is specifically included：
S401：Determine to show strength S trength based on broadcast strategy
Using driver information database, search history driving trace and judge that current driving road segment is driven with the presence or absence of existing
In the person's of sailing information database, determine whether driver's currently trip is located in the range of go off daily, take different transport information
Broadcast strategy.It is as shown in Figure 7 that broadcast strategy formulates flow.
For the driver in the range of go off daily, it possesses abundant history trip data and trip experience, is familiar with
Traffic near current road segment, should be played transport information with middle low-frequency degree and push sequence MS, i.e., played with frequency S2 or S3
Transport information pushes sequence MS；For the driver not in the range of go off daily, it is to the traffic near current road segment
Understand less, shortage history trip data and trip experience, transport information should be played with high frequency and push sequence MS, i.e., with frequently
Spend S1 or S2 and play transport information push sequence MS.
S402：Sequence MS, generation transport information play sequence MS ' are pushed based on broadcast strategy and transport information
From current time tTRise, transport information sequence is integrated in batches according to grade, the transport information sequence of same grade
Arrange and sorted according to its grown place and Current vehicle apart from Distance, until all transport information sequences filtered out are according to aobvious
Show that strength S trength is played just to terminate.Transport information play sequence MS ' product process is as shown in Figure 8.
S5：Judge information updating time T2It is interior to play MS ' whole
In order to prevent in information updating time T2Interior transport information play sequence MS ' overflows, and needs comparison information renewal time T2
With transport information play sequence MS ' reproduction time.
IfThen play MS ' whole；
IfTransport information is then played as much as possible.It is maximum according to what can be played in following formula calculating T2
Information bar number m, selection MS ' preceding m bars are played out：
S6：Calculate front association section up stroke time delays rate and send early warning, as shown in Figure 9
S601：Section according to where positional information judges Traveler (j), and calculate positioned at all vehicles on R (i)
Average overall travel speedWherein,
S602：Calculate R (i) up stroke time delays rate αi, wherein,V is R (i) speed limit；
S603：Calculate R (i) degree of association βi, wherein,
S604：Calculate journey time delay rate ROD of the driver in each relevant road segmentsi, wherein, RODi=αi*βi。
S7：Whether evaluation algorithm terminates
If current driver's travel activity terminates, algorithm terminates；If current driver's travel activity is still continuing, judge
Whether driver drives into next section, if driver drives into next section return to step S2, otherwise continues broadcast information.
This law is bright to be also disclosed a kind of transport information active pushing system based on LBS, including：
On-vehicle information collecting unit, including vehicle GPS, sensor, short-distance wireless communication module, wherein, vehicle GPS is used
In the traveling-position and directional information of acquisition target vehicle；Sensor is used for collection vehicle speed, acceleration, braking and traveling side
To information；Short-distance wireless communication module includes being used to gather running region association sections of road information and information on services, traveling
Information includes subject vehicle driving information and other vehicle traveling informations, and wherein subject vehicle driving information and other vehicles is travelled
Information includes car speed, acceleration, direction and positional information respectively.
Active push unit, the traveling ahead obtained using on-vehicle information collecting unit short-distance and medium-distance communication module associates road
The traffic state information of section, the push algorithm based on LBS is designed based on vehicle real-time position information, and the trip with reference to driver is special
Whether current trip of seeking peace is in go off daily scope, and the transport information broadcasting sequence for meeting its trip characteristics is provided for driver
Row.
Prewarning unit, using on-vehicle information collecting unit short-distance and medium-distance communication module obtain traveling ahead associate section its
The speed and track position information of his vehicle, carrying out short-term prediction to the journey time delay rate for associating section, there is provided front road
Condition warning information.
Car-mounted display unit, shows transport information play sequence.
In the present invention, on-vehicle information collecting unit passes through the sensors such as vehicle GPS, speed, short-distance wireless communication module
The information such as speed, the travel direction of acquisition target vehicle and running region association other car speeds of section, track position etc.
The information on services such as driving information, traffic accident information and gas station.Above- mentioned information is separately input to active push module and pre-
In alert module, export personalized, real-time, accurate transport information and journey time delay rate is visualized in windshield
Display.
The transport information active push method and system based on LBS of the present invention, by obtaining real-time vehicle state itself
Whether information and real-time traffic information, be in go off daily scope, according to institute with reference to vehicle real time position and current trip
The push algorithm based on LBS of design, screening row is carried out by transport information needed for driver according to the urgent degree of operator demand
Sequence, shows time and current vehicle position with reference to available information, actively provides reasonably to go out for it based on driver's trip characteristicses
Row information.The present invention can realize that driver personalityization transport information is pushed；Take into full account the context information residing for driver, because when
Suit measures to local conditions；The problem of mobile message overload, information are competed is solved to a certain extent；Extend the information feeler of driver；Calculate
Method is easily understood.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention, for those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms, all embodiments can not be exhaustive here, it is every to belong to this hair
Row of the obvious changes or variations that bright technical scheme is extended out still in protection scope of the present invention.
Claims (10)
1. a kind of transport information active push method based on LBS, it is characterised in that including：
Transport information is gathered, the transport information includes driving information and information on services；
The Data Structures of transport information sequence are set up with reference to the transport information；
Calculate information sequence update times；
Generate transport information and recommend sequence；
Generate transport information play sequence；
Push and show the transport information play sequence.
2. the transport information active push method according to claim 1 based on LBS, it is characterised in that the traveling letter
Breath includes subject vehicle driving information and other vehicle traveling informations, and wherein subject vehicle driving information and other vehicles travels letter
Breath includes car speed, acceleration, direction and positional information respectively.
3. the transport information active push method according to claim 1 based on LBS, it is characterised in that the traffic letter
The Data Structures of breath sequence include：
Driver Traveler (j)={ xT,yT,tT,vT,dT, wherein, (xT,yT) represent vehicle location coordinate, tTRepresent vehicle
Current traveling moment, vTRepresent the current travel speed of vehicle, dTRepresent the travel direction of vehicle；J=0,1,2 ..., M, M table
Show the driver's number communicated by truck traffic with subject vehicle, Traveler (0) represents the position rail of subject vehicle
Mark information, Traveler (j), j ≠ 0 represents to carry out the location track of communication association driver with subject vehicle by truck traffic
Information；
Road information R (i)={ xR,yR,lR, wherein, (xR,yR) represent the position coordinates of electronic map of automobile navigation road waypoint, lRTable
Show the length in subject vehicle traveling front association section, unit is rice, and i=0,1,2 ..., N, N represents front section bar number, R
(0) represent that subject vehicle is currently located section, R (i), i ≠ 0 represents that subject vehicle is currently located section association section；
Transport information sequence M={ xM,yM,cM,tM,Li, wherein, (xM,yM) represent production transport information sequence institute position seat
Mark；cMRepresent the particular content of transport information sequence；tMRepresent the duration of transport information sequence, LiRepresent the transport information
The grade of sequence；
The pre- play sequence Message={ x, y, c, t, L, Distance, Strength, Number } of transport information, wherein, (x,
Y) represent production transport information sequence position coordinates；C represents the particular content of transport information sequence；T represents transport information
The duration of sequence, L represents the grade of the transport information sequence, and Distance represents transport information sequence grown place and object
The distance of vehicle location, Strength represents display intensity, and Number represents actual play number of times.
4. the transport information active push method according to claim 3 based on LBS, it is characterised in that the calculating letter
Breath sequence update times include：
Subject vehicle is calculated in the running time T being currently located on section1, wherein, T1=R (0) .lR/vT；
Calculate information updating time T2；
From current time tTRise, with information updating time T2To be spaced subject vehicle in the running time being currently located on section
T1Divided, form K information sequence renewal time section, each period can only play 1 transport information play sequence, its
In, K=int (T1/T2)。
5. the transport information active push method according to claim 3 based on LBS, it is characterised in that the generation is handed over
Logical information recommendation sequence includes：
Based on the corresponding transport information sequence of Policy Filtering is pushed, specifically, using driver information database, lookup is gone through
History driving trace infers that current driving location, close to destination, takes different transport information sequences to push strategy；
Transport information sequence is screened based on position, generation transport information pushes sequence, specifically, according to subject vehicle current location
Information (xT,yT), travel direction dTAnd transport information sequence grown place (xM,yM), filter out the traffic on the association section of front
Information sequence, wherein,
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6. the transport information active push method according to claim 1 based on LBS, it is characterised in that the generation is handed over
Communication breath play sequence includes：
Determine to show strength S trength based on broadcast strategy, using driver information database, search history driving trace and sentence
Disconnected current driving road segment whether there is in existing driver information database, determine whether driver's currently trip is located at daily
In Travel Range, different transport information broadcast strategies are taken；
Sequence is pushed based on broadcast strategy and transport information, transport information play sequence is generated, from current time tTRise, will hand over
Logical information sequence is integrated in batches according to grade, the transport information sequence of same grade according to its grown place and Current vehicle away from
From Distance sequences, until all transport information sequences filtered out are played according to display strength S trength.
7. the transport information active push method according to claim 4 based on LBS, it is characterised in that also including judging
Information updating time T2It is interior to play the whole of transport information play sequence,
If T2>=∑ t, then play the whole of transport information play sequence；
If T2＜ ∑ t, then calculate T2The interior maximum information bar number m that can be played, selects the preceding m bars of transport information play sequence
Play out, wherein,
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8. the transport information active push method according to claim 3 based on LBS, it is characterised in that also including calculating
Front associates section up stroke time delays rate and sends early warning, specifically includes：
Section according to where positional information judges Traveler (j), and calculate the average traveling for being located at all vehicles on R (i)
SpeedWherein,
Calculate R (i) up stroke time delays rate αi, wherein,V is R (i) speed limit；
Calculate R (i) degree of association βi, wherein,
Calculate journey time delay rate ROD of the driver in each relevant road segmentsi, wherein, RODi=αi*βi。
9. the transport information active pushing system based on LBS of the method for pushing any one of application claim 1-8, its
It is characterised by, including：
On-vehicle information collecting unit, including vehicle GPS, sensor, short-distance wireless communication module, wherein, vehicle GPS is used to adopt
Collect the traveling-position and directional information of subject vehicle；Sensor is used for collection vehicle speed, acceleration, braking and travel direction letter
Breath；Short-distance wireless communication module includes being used to gather running region association sections of road information and information on services, the traveling
Information includes subject vehicle driving information and other vehicle traveling informations, and wherein subject vehicle driving information and other vehicles is travelled
Information includes car speed, acceleration, direction and positional information respectively；
Active push unit, the traveling ahead obtained using on-vehicle information collecting unit short-distance and medium-distance communication module associates section
Traffic state information, based on vehicle real-time position information design the push algorithm based on LBS, with reference to driver trip characteristicses and
Whether current trip is in go off daily scope, and the transport information play sequence for meeting its trip characteristics is provided for driver；
Car-mounted display unit, shows the transport information play sequence.
10. the transport information active pushing system according to claim 9 based on LBS, it is characterised in that also include：
Prewarning unit, the traveling ahead obtained using on-vehicle information collecting unit short-distance and medium-distance communication module associates other cars of section
Speed and track position information, to associate section journey time delay rate carry out short-term prediction there is provided front road conditions are pre-
Alert information.
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