CN104567898A - Traffic route planning method, system and device - Google Patents
Traffic route planning method, system and device Download PDFInfo
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- CN104567898A CN104567898A CN201310487214.1A CN201310487214A CN104567898A CN 104567898 A CN104567898 A CN 104567898A CN 201310487214 A CN201310487214 A CN 201310487214A CN 104567898 A CN104567898 A CN 104567898A
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- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3453—Special cost functions, i.e. other than distance or default speed limit of road segments
- G01C21/3461—Preferred or disfavoured areas, e.g. dangerous zones, toll or emission zones, intersections, manoeuvre types, segments such as motorways, toll roads, ferries
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Abstract
The invention provides a traffic route planning method, system and device. The method comprises steps as follows: an initial position and a target position of a user are acquired, and at least one route is generated according to the initial position and the target position; traffic accident record, length record and driving time record of each section of each route are inquired, a comprehensive evaluation value of each route is generated according to the inquired information, and the routes are sorted according to the comprehensive evaluation values. By means of the method, the system and the device, safe traffic route navigation can be provided.
Description
Technical field
The present invention relates to Path Planning Technique field, particularly relate to a kind of traffic route planing method, system and device.
Background technology
Current paths planning method is all generally input starting point and terminal, and navigation application provides path planning according to distance or real-time traffic condition.Such as, application number is 201110182466.4, and name is called that the technical scheme of the application documents of path reservation planning system and method is: RX path reservation planning request, at least corresponding starting point of path reservation planning request, destination, subscription time information; Map datum is obtained based on starting point and destination information; Based on starting point, destination and subscription time acquisition of information historical path plan record; Path planning is carried out, generation pass reservation program results based on described map datum, historical path plan record.This file is the total flow with reference to each section, and the flow used and residue can to carry out path planning for the flow of planning.
Again such as, application number is 200610132398.X, and name is called that the technical scheme of the application documents of the method for path planning is: the current position information obtaining user; Input several landmark locations information in a navigational system of portable electron device; Calculate the current position information of user and the distance of several landmark locations information aforementioned, and using the landmark locations information of minor increment in afore-mentioned distance as the planning place in path; Continue to calculate distance of this planning place and several landmark locations information of residue, in this little distance, the landmark locations information of minor increment plans place as the next one, and repeats this step and be calculated to last landmark locations information.This file carries out path planning according to the distance between the current position of user and each landmark locations.
Prior art is due to more consideration time and distance, less consideration safety factor and many factors comprehensive, and the traffic hazard quantity in safety factor is difficult to detect, therefore car owner drive shortest time or nearest route likely time by way of traffic hazard occurred frequently ground route, be difficult to meet the consideration of user to safety factor, and be difficult to meet the consideration of user to time, the Distance geometry many factors such as safely simultaneously, be also difficult to be provided in the parameters such as the safe driving speed on shortest time or nearest route for user.
Summary of the invention
The invention provides a kind of traffic route planing method, system and device, safe traffic route navigation can be provided.
Technical scheme of the present invention is achieved in that
A kind of traffic route planing method, comprising:
Obtain user's reference position and destination locations, generate one or more path according to described reference position and destination locations;
Inquire about the traffic hazard record in the section that each path described comprises, length records and running time record, generate the comprehensive assessment value in each path described according to the information of described inquiry, according to described comprehensive assessment value to each paths ordering.
A kind of traffic route planning system, comprising:
GPS navigation equipment, for obtaining reference position and the destination locations of user, reports to data processing platform (DPP) by described reference position and destination locations, also for receiving the paths ordering result of data processing platform (DPP) feedback;
Data processing platform (DPP), for generating one or more path according to described reference position and destination locations; And the traffic hazard record in the section that each path comprises described in inquiry, length records and running time record, the comprehensive assessment value in each path described is generated according to the information of described inquiry, according to described comprehensive assessment value to each paths ordering, and ranking results is fed back to described GPS navigation equipment.
For a data processing platform (DPP) for traffic route planning, comprising:
Path-generating module, for generating one or more path according to the reference position of user and destination locations;
Paths ordering module, for inquiring about the traffic hazard record in the section that each path described comprises, length records and running time record, the comprehensive assessment value in each path described is generated according to the information of described inquiry, according to described comprehensive assessment value to each paths ordering, and feed back described ranking results.
Visible, the traffic route planing method that the present invention proposes, system and device, multiple driving path can be generated, and the comprehensive assessment value in each path is calculated according to the traffic hazard record in Zhong Ge section, path, comprehensive assessment value according to path sorts to guidance path, thus realizes the traffic route navigation of safety.
Accompanying drawing explanation
Fig. 1 is the traffic route planing method realization flow figure that the present invention proposes;
The system architecture schematic diagram that Fig. 2 applies for the inventive method;
Fig. 3 is the transportation network schematic diagram that the embodiment of the present invention five is applied;
Fig. 4 is the realization flow figure of the embodiment of the present invention six;
Fig. 5 is the data processing platform (DPP) structural representation that the present invention proposes.
Embodiment
The present invention proposes a kind of traffic route planing method, if Fig. 1 is the method realization flow figure, comprising:
Step 101: obtain user's reference position and destination locations, generate one or more path according to described reference position and destination locations;
Step 102: inquire about the traffic hazard record in the section that each path described comprises, length records and running time record, generates the comprehensive assessment value in each path described, according to described comprehensive assessment value to each paths ordering according to the information of described inquiry.
In above-mentioned steps 102, the mode generating the comprehensive assessment value in each path is:
For each path respectively in the following ways:
Information according to inquiry calculates the traffic hazard quantity of this path within the time period preset, and its value is the traffic hazard quantity sum of each section within this time period that this path comprises; Calculate the length in this path according to the information of inquiry, its value is the length sum in each section that this path comprises; Calculate the running time in this path according to the information of inquiry, its value is the running time sum in each section that this path comprises;
Adopt the traffic hazard threshold value in this path divided by traffic hazard quantity, obtain the safety assessment value of this path within the time period preset; Wherein, the traffic hazard threshold value in described path is the mean value of the traffic hazard quantity in value or each path preset;
Adopt the length threshold in this path divided by length, obtain the length assessed value in this path; Wherein, the length threshold in described path is the mean value of the length in value or each path preset;
Adopt the time threshold in this path divided by running time, obtain the time assessed value in this path; Wherein, the time threshold in described path is the mean value of the running time in value or each path preset;
Described safety assessment value, length assessed value and time assessed value are multiplied by respectively corresponding weights, and by results added, obtain the comprehensive assessment value in this path.
In addition, also can adopt other mode computationally secure assessed values, such as safety assessment value equals the inverse of traffic hazard quantity, etc.; As long as the security situation in each path can be embodied.
Above-mentioned length assessed value and time assessed value also can adopt other modes to calculate, and such as length assessed value equals the inverse of length, and time assessed value equals the inverse of running time, etc.As long as can embody each path or running time situation.
In addition, according to the requirement of user, the path meeting user's requirement can be selected in all paths generated, afterwards the path selected assessed and sort.Concrete:
May further include before calculating comprehensive assessment value: according to the requirement of user to length, running time or traffic hazard quantity, determine the path meeting user's requirement;
Afterwards, for the path determined, continue each path to perform the step calculating comprehensive assessment value.
May further include before above-mentioned steps 102:
Transportation network is divided into multiple section, preserves the travelling data in each section, described travelling data is car status information, telecommunication flow information or video information;
Obtain the car status information in each section, judge traffic hazard according to described car status information; Or, obtain the telecommunication flow information in each section, judge traffic hazard according to described telecommunication flow information; Or, obtain the video information in each section, judge traffic hazard according to described video information;
The traffic hazard record in each section in transportation network is generated according to described judged result.
Said method may further include:
Obtain the safety traffic parameter in each section in transportation network, calculate the safe velocity in this section according to described safety traffic parameter; Described safety traffic parameter comprises congestion index, weather index and Pavement Skid Resistance index;
Inquire about the safe velocity in the section that each path comprises.
Said method may further include:
Obtain path or the section of user's actual travel, this path or section traffic hazard quantity within the time period preset is calculated according to described traffic hazard record, if this traffic hazard quantity is greater than the threshold value preset, then point out this path or section danger.
As Fig. 2 system architecture schematic diagram that applied to by the inventive method, comprising: driving consumption management system 201, data processing platform (DPP) 202 and GPS navigation equipment 203, wherein:
Store the travelling data in each section in driving consumption management system 201, this travelling data is in order to reflect the relation of " people, car, road " three.Road section information in driving consumption management system 201 is divide in advance according to urban traffic network information, and each section has unique section mark.
Data processing platform (DPP) 202 can with driving consumption management system 201 integrated setting, also can independently arrange.Data processing platform (DPP) 201 has the interface with driving consumption management system 201, data processing platform (DPP) 202 can identify according to section, the travelling data in the corresponding section of this section mark is obtained from driving consumption management system, this travelling data is analyzed, to know the time that whether this section occurs for traffic hazard and generation traffic hazard, the length in this section, drive through the time required for this section, generate the traffic hazard record in each section accordingly, length records and running time record, by inquiring about the comprehensive assessment value of this record generation pass (comprising more than one section), and according to comprehensive assessment value to each paths ordering, and know the parameter such as congestion index, weather index, Pavement Skid Resistance index in section, determine the safe velocity in each section.Wherein, the time that the traffic hazard recording this section in this traffic hazard record occurs.Data processing platform (DPP) 202 pairs of travelling datas carry out analyzing the traffic flow conditions that can also obtain this section.
Below lift specific embodiment to introduce in detail.
Embodiment one:
The present embodiment introduces data processing platform (DPP) generates traffic hazard record first kind of way according to travelling data.
In the present embodiment, travelling data is specifically as follows the status information of vehicle, judges that the method for traffic hazard is as follows according to travelling data:
The positional information of the GPS module Real-time Collection vehicle that vehicle is installed and velocity information;
Communication module on vehicle, sends the ID of vehicle, position and velocity information to traffic information center;
The ID of vehicle, position and velocity information are sent to driving consumption management system by traffic information center;
Driving consumption management system set up the ID of vehicle, position and velocity information and section identify between incidence relation;
Data processing platform (DPP) obtains the ID of the vehicle corresponding road section, position and velocity information according to section mark from driving consumption management system; Judge whether that traffic hazard occurs according to above-mentioned parameter, had an accident if judge, then record this traffic hazard.
Embodiment two:
The present embodiment introduces data processing platform (DPP) the generates traffic hazard record second way according to travelling data.
In the present embodiment, travelling data is specifically as follows telecommunication flow information, judges that the method for traffic hazard is as follows according to travelling data:
1) telecommunication flow information of earth coil Real-time Collection one fixed step size, and this telecommunication flow information is sent to driving consumption management system;
2) the consumption management system of driving a vehicle set up telecommunication flow information and section identify between incidence relation;
3) data processing platform (DPP) obtains corresponding telecommunication flow information according to section mark from driving consumption management system, judge that whether detect section has traffic hazard to occur, if judge to have an accident, carries out record by this traffic hazard according to real-time traffic stream information.Otherwise continue to read real time data, judge next time; Specific algorithm is:
Arithmetic for real-time traffic flow information acquisition generates the basic data of discontinuous slip 1 minute occupation rate data sequence as distinguished number.Specifically: discontinuous slip 1 minute occupation rate sequence that to build with minimum period 20s be slip interval, its construction method is:
Else，
Wherein: Oi---i-th value of discontinuous slip 1 minute occupation rate sequence;
---i-th value of average 1 minute occupation rate sequence;
---take 20s as interval, i-th value of 1 minute occupation rate sequence of sliding;
---i-th value of 20s occupation rate sequence;
---take 20s as interval, i-th value of 5 minutes occupation rate sequences of sliding,
Judge the method whether detection section has an accident:
1) process the detection road section traffic volume stream information of Real-time Collection, generate discontinuous slip 1 minute occupation rate data sequence;
2) threshold value of judge index is determined;
3) the correlated judgment index calculating discontinuous slip 1 minute occupation rate data sequence, compared with decision threshold, determines whether to have an accident.
The correlated judgment index of discontinuous slip 1 minute occupation rate data sequence is respectively occupation rate o
t,i, the discontinuous slip of the i-th section t 1 minute occupation rate; Occupation rate time difference
the difference of the i-th section t and t-1 moment discontinuous slip 1 minute occupation rate; Occupation rate space interpolation
the difference of t upstream i-th section and the discontinuous slip of adjacent downstream i-th+1 section 1 minute occupation rate; Occupation rate space time difference
the difference of t occupation rate space interpolation and t-1 moment occupation rate space interpolation.
Threshold value determination method is: based on history casualty data off-line calibration or based on predetermined threshold value and in one day the online self-correction of accident and non-casualty data determine.
Occupation rate o
t,i, occupation rate time difference
occupation rate space interpolation
with occupation rate space time difference
when being all not less than threshold value, judgement accident occurs.
Embodiment three:
The present embodiment introduces data processing platform (DPP) generates traffic hazard record the third mode according to travelling data.
In the present embodiment, travelling data is specially video information, judges that the method for traffic hazard is as follows according to travelling data:
1) ccd video camera obtains road sequence of video images and sends to driving consumption management system;
2) data processing platform (DPP) obtains road sequence of video images from driving consumption management system, does medium filtering, the Image semantic classification such as Grads Sharp, removes the noise effect because equipment etc. brings;
3) adopt mixed Gaussian to set up background model, utilize background subtraction to detect the ownership situation of each pixel between scene and moving target in current frame video image, from testing result, then extract the center of each moving target, shape and colouring information;
4) utilize the opening operation of mathematical morphology to remove the non-athletic vehicle target of small size, utilize outline projection analysis to be combined with shape analysis and remove shade, utilize four UNICOM's area identification moving vehicles;
5) utilize Kalman filter and Camshift combinational algorithm to realize many vehicles to follow the tracks of simultaneously.Kalman filter is utilized to predict the position of k (k >=2) frame target, in the neighborhood of this position, the optimal location of target is found as Camshift, k frame predicted value is revised again using this target location as the predicted value of Kalman filter, then modified value is substituted into, carry out next frame calculating.
6) from vehicle tracking result, extract velocity variations, horizontal and vertical position changes, the traffic hazard parameters such as direction of motion change;
7) multiple features Weighted Fusion algorithm is utilized to identify whether traffic hazard occurs.If judge to have an accident, then record is carried out in this traffic hazard.
In addition, traffic hazard record also can have to be learnt by the vehicle real-time report travelled on section or the information of vehicles analysis that gathered by trackside detector, such as, if trackside detector collects the travel speed generation Rapid Variable Design of the vehicle being positioned at certain region, such as all standings etc., then the analysis of trackside detector is learnt in this region and traffic hazard is occurred.
Traffic hazard record is such as following form:
Table one
Embodiment four:
The present embodiment is introduced data processing platform (DPP) and is generated driving path, and assesses each path and the concrete mode sorted.
GPS navigation equipment obtains reference position and the destination locations of user, and this reference position and destination locations are reported to data processing platform (DPP);
Data processing platform (DPP) generates one or more path according to this reference position and destination locations.
Data processing platform (DPP), after getting the traffic hazard record in each section in every paths, length records and running time record, comprehensively can be analyzed according to the length in path, running time and security and obtain ranking results.
Such as, after obtaining the length records in each section in every paths, according to the length records in each section in every paths, the length information of every paths can be obtained, then according to the length information of every paths, obtain the length assessed value of every paths.The length of length threshold/every paths of the length assessed value of every paths=default, default length threshold can rule of thumb set, the mean value of the length of each paths from starting point to terminating point that also can calculate for data processing platform (DPP).
Wherein, in each paths, the length information in each section can be supplied to driving consumption management system by Urban Traffic Planning department after having planned each paths, also can be learnt by manual measurement, the instrument of the record road section length be arranged on vehicle or car-mounted terminal record can also be adopted in the process of moving to obtain the length information in each section in each paths by vehicle, and the length information in each section in each paths and section mark are wirelessly reported driving consumption management system.
After obtaining the running time record in each section in every paths, according to the running time record in each section in every paths, the running time of every paths can be obtained, then according to the running time of every paths, obtain the time assessed value of every paths.The running time of time threshold/every paths of the time assessed value of every paths=default, the time threshold preset can rule of thumb set, the mean value of the running time of each paths from starting point to terminating point that also can calculate for data processing platform (DPP).
Wherein, in every paths, the running time in each section can carry out record by the car-mounted terminal be arranged on vehicle and obtains in the driving process of vehicle, or calculate according to the average overall travel speed of vehicle in the length in each section and each section, and the running time in each section in the every paths obtained and section mark are wirelessly reported driving consumption management system.
After obtaining the traffic hazard record in each section in every paths, the safety assessment value of following two every paths of formulae discovery can be adopted:
The traffic hazard quantity in the overall path of user be function F (A)=F (A1R1)+F (A2R2)+... + F(AnRn)=∑ F (AiRi) (i=1,2 ... n);
The traffic hazard quantity in the traffic hazard threshold values/overall path of the safety assessment value in the overall path of user=default.
Wherein, F (A1R1) represents the of that month traffic hazard quantity occurred on R1 section, if the of that month traffic hazard quantity on certain section is greater than certain threshold value, (this threshold value can be the empirical value of the traffic hazard mean value in each section, the whole city that calculates according to the traffic hazard record in data processing platform (DPP) or other artificial settings, be assumed to be 5), this section is traffic hazard section occurred frequently, then GPS navigation equipment shows this section is high-risk section, and advises new safe section;
Such as, if the traffic hazard quantity in certain overall path of car owner is greater than the threshold value (this threshold value can be the empirical value of the traffic hazard mean value in each section, the whole city that calculates according to the traffic hazard record in data processing platform (DPP) or other artificial settings, 10) preset; Then GPS navigation equipment shows this overall path is traffic hazard path occurred frequently, provides safer overall path simultaneously.
After getting the length assessed value of every paths, time assessed value and safety assessment value, the comprehensive assessment value of the every paths of following formulae discovery can be adopted:
The safe weights of safety assessment value * of time assessed value * time weight+every paths of length assessed value * Length Weight+every paths of comprehensive assessment value=every paths
Wherein, Length Weight, time weight and safe weights can rule of thumb set.User can select path that comprehensive assessment value is the highest as walking path.
Data processing platform (DPP) according to the comprehensive assessment value of every paths, can determine that traffic hazard incidence is low, and the time is short and apart near path, sort, and ranking results is fed back to GPS navigation equipment to each paths.
GPS navigation equipment can be on-vehicle GPS navigation equipment, also can be the intelligent terminal such as smart mobile phone or panel computer.This GPS navigation equipment can realize following functions: current location is located, and destination locations is inquired about, and receives navigation results etc.
GPS navigation equipment directly can receive reference position and the destination locations of user's input, and reference position and destination locations are reported to data processing platform (DPP); Also can receive only the destination locations of user's input, by the current position of GPS navigation equipment consumer positioning (i.e. reference position), and reference position and destination locations be reported to data processing platform (DPP).
Embodiment five:
The present embodiment introduction calculate each path comprehensive assessment value and according to comprehensive assessment value to paths ordering example.
If Fig. 3 is the transportation network schematic diagram that the embodiment of the present invention five is applied.In figure 3,4 paths are always had from starting point A to terminal B.1st paths is made up of section 1, section 2, section 3 and section 4; 2nd paths is made up of section 5; 3rd paths is made up of section 6 and section 7; 4th paths is made up of section 8 and section 9.The length in section 1 is 600m, and running time is 25s, and the quantity that traffic hazard occurred in the unit interval is 1; The length in section 2 is 300m, and running time is 15s, and the quantity that traffic hazard occurred in the unit interval is 1; The length in section 3 is 650m, and running time is 25s, and the quantity that traffic hazard occurred in the unit interval is 1; The length in section 4 is 300m, and running time is 15s, and the quantity that traffic hazard occurred in the unit interval is 1; The length in section 5 is 1250m, and running time is 70s, and the quantity that traffic hazard occurred in the unit interval is 3; The length in section 6 is 700m, and running time is 30s, and the quantity that traffic hazard occurred in the unit interval is 1; The length in section 7 is 750m, and running time is 35s, and the quantity that traffic hazard occurred in the unit interval is 1; The length in section 8 is 1050m, and running time is 35s, and the quantity that traffic hazard occurred in the unit interval is 2; The length in section 9 is 1300m, and running time is 40s, and the quantity that traffic hazard occurred in the unit interval is 2.
The length threshold values preset is 2000m, and default time threshold is 60s, and default traffic hazard threshold value is 2; And length assessed value, time assessed value, the weights of safety assessment value are identical, are 1.
According to above-mentioned information, the comprehensive assessment value calculating the 1st paths corresponding is:
2000/(600+300+650+300)+60/(25+15+25+15)+2/(1+1+1+1)=2.33；
To calculate comprehensive assessment value corresponding to the 2nd paths be comprehensive assessment value that the 3.12,3rd paths is corresponding be the comprehensive assessment value that the 3.30,4th paths is corresponding is 2.15.Therefore, select the 3rd paths as the driving path of user.3rd paths is traffic hazard minimum number, and running time is shorter, and the path that length is shorter considers traffic hazard quantity, running time and length, and the 3rd paths is the most applicable.
In addition, also can pay the utmost attention to the some parameters in running time, length and traffic hazard quantity, then consider other parameters.Such as running time can be paid the utmost attention to, determine the mulitpath of running time in the longest running time of user's acceptable, and then consider traffic hazard quantity, determine the N paths of traffic hazard quantity in user's acceptable traffic hazard quantity in above-mentioned mulitpath, and then consider distance, determine the path of above-mentioned N paths middle distance within user's acceptable distance, and the running time required for the planning of secure path, in the parameters such as Distance geometry traffic hazard quantity, it can be corresponding optimum configurations the longest running time of user's acceptable, user's acceptable longest distance, the traffic hazard quantity that user's acceptable is maximum, like this, multiple parameter can be considered by many levels, obtain secure path.
In addition, data processing platform (DPP) can also provide option for user, such as according to the shortest sequence of path, according to the shortest sequence of running time and sort according to security.
(1) according to the shortest sequence of route
Determine the section included by every paths, obtain the length information in each section, obtain the length information of every paths, sorted in path from small to large according to path.
(2) the shortest according to running time
Determine the section included by every paths, obtain the length information in each section, and the current traffic flow situation in each section, obtain the running time on Mei Tiao road, sorted in path from small to large according to running time.
(3) sort according to security
Determine the section included by every paths, according to the traffic hazard quantity of each section in preset time period, obtain the safety assessment value in this section, and then obtain the safety assessment value of every paths, sort from high to low according to safety assessment value.
The one of section being carried out to safety assessment realizes:
The traffic hazard quantity of safety assessment value=predetermined threshold value/this section in preset time period in section
This predetermined threshold value for what rule of thumb set, also can calculate for data processing platform (DPP), in above-mentioned preset time period, using the mean value of the traffic hazard quantity in all sections in this place, section predeterminable area (city) as this predetermined threshold value.
The traffic hazard quantity in the overall path of user be function F (A)=F (A1R1)+F (A2R2)+... + F(AnRn)=∑ F (AiRi) (i=1,2 ... n);
The traffic hazard quantity in the threshold values/overall path of the safety assessment value in the overall path of user=default
User directly can also inquire about the traffic hazard situation in certain section or certain overall path by GPS navigation equipment.
User can also be in the process of walking, adopt the information of the walking path of GPS navigation equipment real time record oneself and the road of process, GPS navigation equipment can also with the roadside device on the road of process or trackside detector generation information interaction, obtain the information in each section of the road of process, above-mentioned information is sent to data processing platform (DPP), data processing platform (DPP) is according to the quantity of the traffic hazard that each section of the information inquiry in each section occurs, the section that traffic hazard quantity is greater than default threshold value is labeled as Dangerous Area, prompting user adopts other section to replace this section, or the quantity of the traffic hazard that the walking path of counting user occurs, if the quantity of the traffic hazard on walking path is greater than default threshold value, is then labeled as dangerous path by whole piece walking path, user is pointed out to adopt other walking path.
In addition, when determining secure path, data processing platform (DPP) according to each section mark in secure path, can also obtain the parameters such as the congestion index in each section in secure path, weather index and Pavement Skid Resistance index from driving consumption management system.Such as, congestion index can be the numeral of 1-7, obtains for driving consumption management platform divides according to the jam situation in each section; Weather index also can be that driving consumption management platform is determined according to the weather condition (namely determining whether to drive a vehicle according to the weather condition in each section) in each section; The obtain manner of Pavement Skid Resistance index is similar.
Data processing platform (DPP) can determine according to the congestion index in section each in secure path, weather index and Pavement Skid Resistance index etc. the safe velocity that each section is corresponding, to enable each section of user in secure path to adopt corresponding safe velocity travel, improve security further.
Obtain the traffic hazard situation in all sections in this path and the traffic hazard situation in overall path in order to realize user according to the path run over, can on automobile sensor installation (can record path and each road section information), GPS navigation equipment and traffic safety path planning client; Be provided with communication module (supporting GSM/GPRS/3G/TD-LTE) in described sensor, information interaction can be carried out with the data processing platform (DPP) of far-end.
User checks the related data in data processing platform (DPP) by GPS navigation equipment and GSM/GPRS/3G/TD-LTE network, obtain the path planning safety instruction of oneself simultaneously.
Embodiment six:
According to the actual travel path of user, data processing platform (DPP) can obtain path or the section of user's actual motion, when the section in the traffic hazard record that certain section and this locality are preserved is mated, the traffic data record in this section is sent to the GPS navigation equipment of user, sets up the traffic hazard database of oneself for user.Specifically as shown in Figure 4.
The present invention also proposes a kind of traffic route planning system, comprising:
GPS navigation equipment, for obtaining reference position and the destination locations of user, reports to data processing platform (DPP) by described reference position and destination locations, also for receiving the paths ordering result of data processing platform (DPP) feedback;
Data processing platform (DPP), for generating one or more path according to described reference position and destination locations; And the traffic hazard record in the section that each path comprises described in inquiry, length records and running time record, the comprehensive assessment value in each path described is generated according to the information of described inquiry, according to described comprehensive assessment value to each paths ordering, and ranking results is fed back to described GPS navigation equipment.
In said system, the mode that data processing platform (DPP) generates the comprehensive assessment value in each path according to the information of inquiry can be:
For each path respectively in the following ways:
Information according to inquiry calculates the traffic hazard quantity of this path within the time period preset, and its value is the traffic hazard quantity sum of each section within this time period that this path comprises; Calculate the length in this path according to the information of inquiry, its value is the length sum in each section that this path comprises; Calculate the running time in this path according to the information of inquiry, its value is the running time sum in each section that this path comprises;
Adopt the traffic hazard threshold value in this path divided by traffic hazard quantity, obtain the safety assessment value of this path within the time period preset; Wherein, the traffic hazard threshold value in described path is the mean value of the traffic hazard quantity in value or each path preset;
Adopt the length threshold in this path divided by length, obtain the length assessed value in this path; Wherein, the length threshold in described path is the mean value of the length in value or each path preset;
Adopt the time threshold in this path divided by running time, obtain the time assessed value in this path; Wherein, the time threshold in described path is the mean value of the running time in value or each path preset;
Described safety assessment value, length assessed value and time assessed value are multiplied by respectively corresponding weights, and by results added, obtain the comprehensive assessment value in this path.
In said system, GPS navigation equipment can also be used for, to the requirement of described data processing platform (DPP) report of user to length, running time or traffic hazard quantity;
Data processing platform (DPP) can also be used for, the path meeting user's requirement is determined according to described requirement, for the comprehensive assessment value in described each path of path computing determined, according to described comprehensive assessment value to the described paths ordering determined, and ranking results is fed back to described GPS navigation equipment.
Said system can also comprise driving consumption management system, and for transportation network is divided into multiple section, preserve the travelling data in each section, described travelling data is car status information, telecommunication flow information or video information;
Described data processing platform (DPP) can also be used for, and obtains the car status information in each section, judges traffic hazard according to described car status information; Or, obtain the telecommunication flow information in each section, judge traffic hazard according to described telecommunication flow information; Or, obtain the video information in each section, judge traffic hazard according to described video information; Also for generating traffic hazard record according to described judged result.
In said system, data processing platform (DPP) can also be used for, and obtains the safety traffic parameter in each section in transportation network, calculates the safe velocity in this section according to described safety traffic parameter; Described safety traffic parameter comprises congestion index, weather index and Pavement Skid Resistance index;
Described GPS navigation equipment can also be used for, and inquires about the safe velocity in the section that each path comprises.
In said system, data processing platform (DPP) can also be used for, obtain path or the section of user's actual travel, this path or section traffic hazard quantity within the time period preset is calculated according to described traffic hazard record, if this traffic hazard quantity is greater than the threshold value preset, then point out this path or section danger.
The present invention also proposes a kind of data processing platform (DPP) for traffic route planning, if Fig. 5 is the structural representation of this data processing platform (DPP), comprising:
Path-generating module 501, for generating one or more path according to the reference position of user and destination locations;
Paths ordering module 502, for inquiring about the traffic hazard record in the section that each path described comprises, length records and running time record, the comprehensive assessment value in each path described is generated according to the information of described inquiry, according to described comprehensive assessment value to each paths ordering, and feed back described ranking results.
Above-mentioned data processing platform (DPP) can also comprise:
Record generation module 503, for obtaining the car status information in each section in transportation network, judges traffic hazard according to described car status information; Or, obtain the telecommunication flow information in each section, judge traffic hazard according to described telecommunication flow information; Or, obtain the video information in each section, judge traffic hazard according to described video information; Also for generating the traffic hazard record in each section in transportation network according to described judged result.
Speed calculation module 504, for obtaining the safety traffic parameter in each section in transportation network, calculates the safe velocity in this section according to described safety traffic parameter; Described safety traffic parameter comprises congestion index, weather index and Pavement Skid Resistance index; Also for the safe velocity in the request feedback section according to user.
Prompting module 505, for obtaining path or the section of user's actual travel, this path or section traffic hazard quantity within the time period preset is calculated according to described traffic hazard record, if this traffic hazard quantity is greater than the threshold value preset, then point out this path of user or section danger.
As fully visible, the traffic route planing method that the present invention proposes, system and device, establish the secure path method that a set of overall route mates with each segmentation road section traffic volume accident, and consider running time, distance, traffic hazard quantity and other parameters, the jam situation, weather condition, surface conditions etc. in such as section, can cook up safer overall route or segmentation route and safe driving speed for car owner.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (16)
1. a traffic route planing method, is characterized in that, described method comprises:
Obtain user's reference position and destination locations, generate one or more path according to described reference position and destination locations;
Inquire about the traffic hazard record in the section that each path described comprises, length records and running time record, generate the comprehensive assessment value in each path described according to the information of described inquiry, according to described comprehensive assessment value to each paths ordering.
2. method according to claim 1, is characterized in that, the mode that the described information according to inquiry generates the comprehensive assessment value in each path is:
For each path respectively in the following ways:
Information according to inquiry calculates the traffic hazard quantity of this path within the time period preset, and its value is the traffic hazard quantity sum of each section within this time period that this path comprises; Calculate the length in this path according to the information of inquiry, its value is the length sum in each section that this path comprises; Calculate the running time in this path according to the information of inquiry, its value is the running time sum in each section that this path comprises;
Adopt the traffic hazard threshold value in this path divided by traffic hazard quantity, obtain the safety assessment value of this path within the time period preset; Wherein, the traffic hazard threshold value in described path is the mean value of the traffic hazard quantity in value or each path preset;
Adopt the length threshold in this path divided by length, obtain the length assessed value in this path; Wherein, the length threshold in described path is the mean value of the length in value or each path preset;
Adopt the time threshold in this path divided by running time, obtain the time assessed value in this path; Wherein, the time threshold in described path is the mean value of the running time in value or each path preset;
Described safety assessment value, length assessed value and time assessed value are multiplied by respectively corresponding weights, and by results added, obtain the comprehensive assessment value in this path.
3. method according to claim 1 and 2, is characterized in that, described taking a step forward of calculating comprehensive assessment value comprises: according to the requirement of user to length, running time or traffic hazard quantity, determines the path meeting user's requirement;
For the path determined, continue the step performing described calculating comprehensive assessment value.
4. method according to claim 1 and 2, is characterized in that, the taking a step forward of traffic hazard record in the section that each path of described inquiry comprises comprises:
Transportation network is divided into multiple section, preserves the travelling data in each section, described travelling data is car status information, telecommunication flow information or video information;
Obtain the car status information in each section, judge traffic hazard according to described car status information; Or, obtain the telecommunication flow information in each section, judge traffic hazard according to described telecommunication flow information; Or, obtain the video information in each section, judge traffic hazard according to described video information;
The traffic hazard record in each section in transportation network is generated according to described judged result.
5. method according to claim 1 and 2, is characterized in that, described method comprises further:
Obtain the safety traffic parameter in each section in transportation network, calculate the safe velocity in this section according to described safety traffic parameter; Described safety traffic parameter comprises congestion index, weather index and Pavement Skid Resistance index;
Inquire about the safe velocity in the section that each path comprises.
6. method according to claim 1 and 2, is characterized in that, described method comprises further:
Obtain path or the section of user's actual travel, this path or section traffic hazard quantity within the time period preset is calculated according to described traffic hazard record, if this traffic hazard quantity is greater than the threshold value preset, then point out this path or section danger.
7. a traffic route planning system, is characterized in that, described system comprises:
GPS navigation equipment, for obtaining reference position and the destination locations of user, reports to data processing platform (DPP) by described reference position and destination locations, also for receiving the paths ordering result of data processing platform (DPP) feedback;
Data processing platform (DPP), for generating one or more path according to described reference position and destination locations; And the traffic hazard record in the section that each path comprises described in inquiry, length records and running time record, the comprehensive assessment value in each path described is generated according to the information of described inquiry, according to described comprehensive assessment value to each paths ordering, and ranking results is fed back to described GPS navigation equipment.
8. system according to claim 7, is characterized in that, the mode that described data processing platform (DPP) generates the comprehensive assessment value in each path according to the information of inquiry is:
For each path respectively in the following ways:
Information according to inquiry calculates the traffic hazard quantity of this path within the time period preset, and its value is the traffic hazard quantity sum of each section within this time period that this path comprises; Calculate the length in this path according to the information of inquiry, its value is the length sum in each section that this path comprises; Calculate the running time in this path according to the information of inquiry, its value is the running time sum in each section that this path comprises;
Adopt the traffic hazard threshold value in this path divided by traffic hazard quantity, obtain the safety assessment value of this path within the time period preset; Wherein, the traffic hazard threshold value in described path is the mean value of the traffic hazard quantity in value or each path preset;
Adopt the length threshold in this path divided by length, obtain the length assessed value in this path; Wherein, the length threshold in described path is the mean value of the length in value or each path preset;
Adopt the time threshold in this path divided by running time, obtain the time assessed value in this path; Wherein, the time threshold in described path is the mean value of the running time in value or each path preset;
Described safety assessment value, length assessed value and time assessed value are multiplied by respectively corresponding weights, and by results added, obtain the comprehensive assessment value in this path.
9. the system according to claim 7 or 8, is characterized in that, described GPS navigation equipment also for, to the requirement of described data processing platform (DPP) report of user to length, running time or traffic hazard quantity;
Described data processing platform (DPP) also for, the path meeting user's requirement is determined according to described requirement, for the comprehensive assessment value in described each path of path computing determined, according to described comprehensive assessment value to the described paths ordering determined, and ranking results is fed back to described GPS navigation equipment.
10. the system according to claim 7 or 8, it is characterized in that, described system also comprises driving consumption management system, for transportation network is divided into multiple section, preserve the travelling data in each section, described travelling data is car status information, telecommunication flow information or video information;
Described data processing platform (DPP) also for, obtain the car status information in each section, judge traffic hazard according to described car status information; Or, obtain the telecommunication flow information in each section, judge traffic hazard according to described telecommunication flow information; Or, obtain the video information in each section, judge traffic hazard according to described video information; Also for generating traffic hazard record according to described judged result.
11. systems according to claim 7 or 8, is characterized in that, described data processing platform (DPP) also for, obtain the safety traffic parameter in each section in transportation network, calculate the safe velocity in this section according to described safety traffic parameter; Described safety traffic parameter comprises congestion index, weather index and Pavement Skid Resistance index;
Described GPS navigation equipment also for, inquire about the safe velocity in the section that each path comprises.
12. systems according to claim 7 or 8, it is characterized in that, described data processing platform (DPP) also for, obtain path or the section of user's actual travel, this path or section traffic hazard quantity within the time period preset is calculated according to described traffic hazard record, if this traffic hazard quantity is greater than the threshold value preset, then point out this path or section danger.
13. 1 kinds of data processing platform (DPP)s for traffic route planning, it is characterized in that, described data processing platform (DPP) comprises:
Path-generating module, for generating one or more path according to the reference position of user and destination locations;
Paths ordering module, for inquiring about the traffic hazard record in the section that each path described comprises, length records and running time record, the comprehensive assessment value in each path described is generated according to the information of described inquiry, according to described comprehensive assessment value to each paths ordering, and feed back described ranking results.
14. data processing platform (DPP)s according to claim 13, is characterized in that, described data processing platform (DPP) also comprises:
Record generation module, for obtaining the car status information in each section in transportation network, judges traffic hazard according to described car status information; Or, obtain the telecommunication flow information in each section, judge traffic hazard according to described telecommunication flow information; Or, obtain the video information in each section, judge traffic hazard according to described video information; Also for generating the traffic hazard record in each section in transportation network according to described judged result.
15. data processing platform (DPP)s according to claim 13 or 14, it is characterized in that, described data processing platform (DPP) also comprises:
Speed calculation module, for obtaining the safety traffic parameter in each section in transportation network, calculates the safe velocity in this section according to described safety traffic parameter; Described safety traffic parameter comprises congestion index, weather index and Pavement Skid Resistance index; Also for the safe velocity in the request feedback section according to user.
16. data processing platform (DPP)s according to claim 13 or 14, it is characterized in that, described data processing platform (DPP) also comprises prompting module, for obtaining path or the section of user's actual travel, this path or section traffic hazard quantity within the time period preset is calculated according to described traffic hazard record, if this traffic hazard quantity is greater than the threshold value preset, then point out this path of user or section danger.
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