CN104931065A - Map with relative traffic condition and drive route - Google Patents
Map with relative traffic condition and drive route Download PDFInfo
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- CN104931065A CN104931065A CN201510307270.1A CN201510307270A CN104931065A CN 104931065 A CN104931065 A CN 104931065A CN 201510307270 A CN201510307270 A CN 201510307270A CN 104931065 A CN104931065 A CN 104931065A
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01C21/3492—Special cost functions, i.e. other than distance or default speed limit of road segments employing speed data or traffic data, e.g. real-time or historical
Abstract
The invention relates to a map with relative traffic conditions and drive routes, and provides a method for representing the relative traffic conditions on the map. The method comprises the following steps: dividing the roads on the map into sections, and acquiring the current traffic condition and the same-period historical average traffic condition of each road section; calculating the relative traffic condition of each road section based on the current traffic condition and the same-period historical average traffic condition of the road section; representing the calculated relative traffic condition of each road section on the map. The invention further provides a method for selecting a drive route. The method for selecting the drive route comprises the following steps: recognizing various optional drive routes on the map according to a starting point and a destination; acquiring the current traffic condition and the same-period historical average traffic condition of each optional drive route; based on the current traffic conditions and the same-period historical average traffic conditions, calculating the relative traffic condition of each optional drive route; selecting a drive route according to the relative traffic conditions of the optional drive routes.
Description
Technical field
The present invention relates to map and navigation, more specifically, relate to the map with relative traffic and traffic route.
Background technology
At present, electronic chart is widely used in Mobile solution or desktop application.As long as network support, people can check electronic chart whenever and wherever possible, search the destination oneself wanting to understand.Electronic chart can show current traffic condition.Such as, green represents unimpeded section, and yellow represents low running speed section, and redness then represents congested link.People are when driving trip, and the traffic that can Reference Map show, can have certain in-mind anticipation to stroke on the one hand, can select to a certain extent on the other hand relatively smoothly route to avoid blocking up.
In the metropolis such as Beijing, Shanghai, traffic congestion becomes serious urban issues gradually.The people gone on a journey for driving, some section and some period (such as morning peak on and off duty) can present normalization and block up.People can gradually be accustomed to or be familiar with the traffic congestion of these sections and these periods.When normalization is blocked up, people are not necessarily responsive for the absolute traffic situation numerical value that namely definitely blocks up.On the contrary, if trickle change occurs congestion, such as, the weight change of jam situation, then can make people feel responsive.On the other hand, some originally should become low running speed in unimpeded section, or the road of low running speed becomes and blocks up, or low running speed or congested link become unimpeded, and the impression of people all can be made more obvious.That is, people are more sensitive to the relative change of traffic, but not absolute figure.And so relative change, is mainly derived from comparing of current traffic condition and the history traffic same period (being generally average traffic situation).
In addition, traffic is also judge one of certain section judgement reference whether occurring burst or unscheduled event.Wherein, occur definitely blocking up, may indicate that certain section occurs accident so that affects traffic.But, in peak time morning and evening, the generation of some accident may cover by normalization jam; In the case, the relative situation of change of traffic may have meaning more.
In the application of some electronic navigations, many candidate's traffic routes can be provided.Generally can follow the option such as " shortest time ", " short line ", " whether walking toll road " to distinguish.But do not consider the contrast situation of current traffic condition and the history traffic same period, ignore the relative situation of change that people can be more responsive.In fact, under congestion, people not necessarily can select " shortest time ", because the difference of time is probably trickle, and driving experience, particularly to the impression of change (compared with at ordinary times) relatively of blocking up, then more can affect the selection of people to traffic route.
Summary of the invention
Consider above situation, it is desirable in map, add the element reflecting relative traffic.And, when people select traffic route, relative traffic can be provided for reference.
According to an aspect of the present invention, provide a kind of method embodying relative traffic on map, comprise the steps: the road on map to carry out segmentation; Obtain current traffic condition and the history average traffic same period situation of each segmentation road; Based on current traffic condition and history average traffic same period situation, calculate the relative traffic of each segmentation road; And the relative traffic of each segmentation road calculated is presented on map.
Preferably, described traffic is passage rate.The relative traffic of each segmentation road is calculated by being compared with the history average passage rate same period by current passage rate.
Preferably, described traffic is congestion index.The relative traffic of each segmentation road is calculated by being compared with the history average congestion index same period by cur-rent congestion index.
Preferably, the relative traffic of each segmentation road calculated is presented on map comprises: present the segmentation road on the map with different traffic relatively with different colours.
According to another aspect of the present invention, provide a kind of selection traffic route method, comprise the steps: according to departure place and destination, map identifies many candidate's traffic routes; Obtain current traffic condition and the history average traffic same period situation of every bar candidate traffic route; Based on current traffic condition and history average traffic same period situation, calculate the relative traffic of every bar candidate traffic route; And select traffic route according to the relative traffic of every bar candidate traffic route.
Preferably, obtain current traffic condition and the history average traffic same period situation of every bar candidate traffic route, comprise: every bar candidate traffic route is carried out segmentation, obtain current traffic condition and the history average traffic same period situation of each segmentation of every bar candidate traffic route.Based on current traffic condition and history average traffic same period situation, calculate the relative traffic of every bar candidate traffic route, comprise: based on current traffic condition and the history average traffic same period situation of each segmentation of every bar candidate traffic route, calculate the relative traffic of each segmentation of every bar candidate traffic route.
Preferably, select traffic route according to the relative traffic of every bar candidate traffic route, comprising: select traffic route according to the relative traffic of each segmentation of every bar candidate traffic route.
Preferably, traffic route is selected according to the relative traffic of every bar candidate traffic route, comprise: the relative traffic of each segmentation of every bar candidate traffic route is weighted summation according to each point of segment distance respectively, obtain every bar candidate traffic route comprehensive traffic relatively separately; And select traffic route according to the respective comprehensive traffic relatively of every bar candidate traffic route.
Accompanying drawing explanation
Below with reference to the accompanying drawings the present invention is described in conjunction with the embodiments.In the accompanying drawings:
Fig. 1 is the process flow diagram embodying the method for relative traffic on map according to the embodiment of the present invention.
Fig. 2 is the process flow diagram of the selection traffic route method according to the embodiment of the present invention.
Embodiment
Specific embodiments of the invention will be described in detail below.
Fig. 1 is the flow process Figure 100 embodying the method for relative traffic on map according to the embodiment of the present invention.
According to Fig. 1, in step 101, first the road on map is carried out segmentation.Current electronic chart substantially all can carry out segmentation to the road on map, is used for marking different traffics.Such as, the segmentation of road can based on distance, such as, every 1 kilometer or every 500 meters, 100 meters, 50 meters, 10 meters or arbitrarily other suitable distances as one section; The segmentation of road also can based on the setting of traffic lights, and such as, the road between every two (or more) traffic lights is as one section; The segmentation of road also can based on the planning of block, and such as, the road between each block, each crossroad is as one section.In theory, roadway segment is thinner, and the traffic reflected is also more accurate, but simultaneously for the calculating of electronic chart and the requirement of storage also higher.In addition, it should be noted that on same path or on same route, the segmentation criteria of road can be different, and therefore, some sections are 500 meters, 1 kilometer, some sections.
In step 103, obtain current traffic condition and the history average traffic same period situation of each segmentation road.
The mode obtaining the traffic of road has a variety of.Such as, investigate in certain hour by passing through the number etc. of the end to end automobile in this section in the travel speed of the automobile in this section, certain hour.According to different modes, the physical quantity of reflection traffic can be road speed, also can be congestion index.Such as, the physical quantity using road speed as reflection traffic, speed per hour 40-60 kilometer can be thought unimpeded, and speed per hour 20-40 kilometer can think low running speed, and speed per hour less than 20 kilometers can be thought to block up, and speed per hour less than 5 kilometers can think heavy congestion, etc.In another example, the physical quantity using congestion index as reflection traffic, such as, can use the congestion index of 0-10, congestion index is larger, shows that traffic is more blocked up; Otherwise congestion index is less, then show that traffic is more unobstructed.Congestion index can obtain based on the travel speed of the automobile by this section in certain hour, also can obtain based on the number etc. of the end to end automobile by this section in certain hour.
In step 103, current traffic condition can be obtained, the passage rate in such as this section or congestion index by the open real time data of local transit administration office actual measurement.Meanwhile, according to the large data of history, can find this section in history average traffic situation of the same period, such as this section is in the average passage rate of this period or average congestion index.
Inquire into the concept of " the history same period " below.In general, history can be same month on Gregorian calendar same time on the same day or identical period the same period.Such as, be period of 18:00-18:15 on June 1 equally.History same period also can be in lunar calendar meaning.Such as, the period of 17:00 or 17:00-17:15 in period of the 12:00-12:15 New Year's Eve at of the lunar calendar, the Mid-autumn Festival (lunar calendar August 15).History also can consider the concept in week the same period.Such as, the period of 16:00 or 16:00-16:15 of Friday.Or, consider the period of 16:00 or 16:00-16:15 of the previous day festivals or holidays, the period of 10:00 or 10:00-10:15 on same day festivals or holidays.In addition, there iing the city of tail number restricted driving measure, also can consider the impact that tail number is restricted driving.Such as, the regulation that Beijing's execution machine motor-car tail number is restricted driving: motor vehicle, according to the tail number on licence plate, has weekly a day and can not set out on a journey at the appointed time traveling.Such as, what Thursday restricted driving is the vehicle of tail number 4,9.Due to Beijing's tail number be 4 vehicle little, cause this day less by the vehicle of restricting driving, so be easier to occur blocking up.And Wednesday restricts driving is the vehicle of tail number 3,8.Due to Beijing's tail number be 8 vehicle more, cause this day more by the vehicle of restricting driving, so probably smooth the way.Due to tail number restrict driving rule at set intervals (such as 3 months) can rotation be carried out, the concept in week is considered not enough so simple, also need to consider tail number restrict driving regular rotation situation (such as 4,9 restrict driving with Monday morning peak or the combined meeting of evening peak Friday add heavy traffic bear), the so-called history average traffic same period situation of (tail number restrict driving identical and without other influences factor difference) under adding up equal factor with this.In addition, also can consider the winter and summer vacation time of school, owing to lacking head of a family's shuttle flow, to the positive influences that traffic is brought.
In addition, " same period " also relate to the concept of " same to time " or " same to period ".In the present invention, the time can refer to the concrete moment.Period can refer to period or other suitable periods arbitrarily of 5 minutes, 10 minutes, 15 minutes.Similar to the theory of roadway segment, the period is thinner, and the traffic reflected is also more accurate, but simultaneously for the calculating of electronic chart and the requirement of storage also higher.
Another is worth the concept inquired into be " on average ".The scope of the large data of history can be 1 year, 2 years, 3 years, 5 years or other appropriate times arbitrarily.But because vehicles number constantly increases, longer historical range is then not too practical.Once vehicles number reaches peak value or equilibrium value, then longer historical range is just suitable.Average traffic situation can be the mean value of the traffic numerical value of the same period in historical range.Such as, in certain roadway segment, in nearest 3 years, the speed of a motor vehicle record of annual 18:00-18:15 period June 1 more has 3 (being the speed of a motor vehicle of 1 18:00-18:15 period of June before 1 year, before 2 years, before 3 years respectively), these three speed of a motor vehicle are averaged, just obtains history average traffic same period situation (average passage rate) in this roadway segment.In addition, history average traffic same period situation also can be average congestion index.Such as, in certain roadway segment, in nearest 1 year the congestion index record of each 18:00-18:15 period Friday have 30 can be for reference (although 1 year has 52 weeks, but screen out the Friday of some special circumstances, such as festivals or holidays (not blocking up) or (blocked up especially) before festivals or holidays, approximately can obtain can be for reference significant 30 records), these 30 congestion index are averaged, just obtains history average traffic same period situation (average congestion index) in this roadway segment.
In step 105, based on current traffic condition and history average traffic same period situation, calculate the relative traffic of each segmentation road.In one embodiment, current traffic condition and history average traffic same period situation are compared, to calculate the relative traffic of each segmentation road.Such as, relative traffic can be the ratio of speed, and compare by current passage rate and the history average passage rate same period, the ratio obtained is relative velocity index.Relative velocity index in the scope of 1 ± a time (a can get 20%, 10%, 5% etc. or other suitable numerical value arbitrarily), can think that current traffic condition and history same period are without too big difference.When relative velocity index is less than 1-a, this section blocks up than history the same period more; When relative velocity index is greater than 1+a, this section is more unimpeded for the same period than history.Similarly, relative traffic can be the ratio of congestion index (between 0 to 10, the larger expression of numerical value is more blocked up), and compare by cur-rent congestion index and the history average congestion index same period, the ratio obtained is relative congestion index.Relative congestion index in the scope of 1 ± b time (b can get 20%, 10%, 5% etc. or other suitable numerical value arbitrarily), can think that current traffic condition and history same period are without too big difference.When relative congestion index is less than 1-b, this section is more unimpeded for the same period than history; When relative velocity index is greater than 1+b, this section blocks up than history the same period more.
In step 107, the relative traffic of each segmentation road calculated is presented on map.By above step, each segmentation road on map has calculated respective relative traffic.Need, by these relative traffics, map to present.Wherein, for the segmentation road that relative traffic is different, map carries out different presenting respectively.In one embodiment, the segmentation road on the map with different traffic is relatively presented with different colours.It will be understood by those skilled in the art that presentation mode besides colour, can also be gray scale, texture, shade, flicker, can be even auditory tone cues, voice message, tonal variations, or the differentiation of sense of touch aspect presents.
By the method for flow process Figure 100 of Fig. 1, people are easier to understand traffic by viewing map.Such as, user, when selecting to check traffic, can select the absolute figure checking current traffic condition, also can select to check the relative value (i.e. relative traffic, compared with history same period) of current traffic condition.Like this, people can experience absolute magnitude, also can experience relative quantity.
Such as, relative traffic is occurred extremely (changing large especially, namely the ratio of relative traffic is large especially or little especially) section, likely there is some situations about happening suddenly, be worth other information of related departments' reference to dispose rapidly and make a response.Such as, catch fire, sewer blockage, means of transportation or billboard collapse, gathering of people, traffic hazard etc. all can cause traffic abnormal, the relevant departments such as fire-fighting can in time for site of an accident eliminating accident.
Fig. 2 is flow process Figure 200 of the selection traffic route method according to the embodiment of the present invention.
According to Fig. 2, in step 201, according to departure place and destination, map identifies many candidate's traffic routes.Current many electronic charts all have the function of stroke planning or traffic navigation, and in addition, automatic navigator also all has the function of stroke planning or traffic navigation.According to the departure place that user-selected destination and user's current location (departure place) or user are specified, map identifies several candidate's traffic routes.Such as, three traffic routes such as route 1, route 2, route 3 are identified.
In step 203, obtain current traffic condition and the history average traffic same period situation of every bar candidate traffic route.
In one embodiment, every bar candidate traffic route is carried out segmentation, obtain current traffic condition and the history average traffic same period situation of each segmentation of every bar candidate traffic route.About the current traffic condition of each segmentation and the mode of history average traffic same period situation that obtain every bar candidate traffic route, can with reference to the concrete discussion of step 103 in the process flow diagram of Fig. 1.
In step 205, based on current traffic condition and history average traffic same period situation, calculate the relative traffic of every bar candidate traffic route.
In one embodiment, based on current traffic condition and the history average traffic same period situation of each segmentation of every bar candidate traffic route, the relative traffic of each segmentation of every bar candidate traffic route is calculated.In one embodiment, current traffic condition and history average traffic same period situation are compared, to calculate the relative traffic of each segmentation road.Can with reference to the concrete discussion of step 105 in the process flow diagram of Fig. 1.
In step 207, select traffic route according to the relative traffic of every bar candidate traffic route.
In one embodiment, traffic route is selected according to the relative traffic of each segmentation of every bar candidate traffic route.Such as, the relative traffic of each segmentation of every bar candidate traffic route is presented on map, as described in the step 107 in the process flow diagram of Fig. 1.User, when checking the traffic of every bar candidate traffic route, can select the absolute figure checking current traffic condition, also can select to check the relative value (i.e. relative traffic, compared with history same period) of current traffic condition.Like this, people can experience absolute magnitude, also can experience relative quantity.
In another embodiment, the relative traffic of each segmentation of every bar candidate traffic route is weighted summation according to each point of segment distance respectively, obtains every bar candidate traffic route comprehensive traffic relatively separately.Such as, article one, have three segmentations in candidate's traffic route, the distance of segmentation is respectively 500 meters, 1 kilometer, 500 meters, relative traffic (relative velocity index) is respectively 1.0,1.2,0.9, then the comprehensive traffic (relative velocity index) relatively of this candidate's traffic route obtained after being weighted summation according to each point of segment distance is: 1.0*1/4+1.2*2/4+0.9*1/4=1.075.Four segmentations are had in another candidate's traffic route, segment distance is divided to be all 500 meters, relative traffic (relative velocity index) is 0.9,0.9,0.8,1.2 respectively, then the comprehensive traffic (relative velocity index) relatively of this candidate's traffic route obtained after being weighted summation according to each point of segment distance is: 0.9*1/4+0.9*1/4+0.8*1/4+1.2*1/4=0.95.
Then, traffic route is selected according to the respective comprehensive traffic relatively of every bar candidate traffic route.In the example above, in the meaning of relative traffic, more preferably select last bar route, because its relative velocity index is bigger, mean if select this road, can select than usual to feel more more unobstructed during this road; And if select a rear route, when can select this road than usual, sensation is more blocked up.
The route be generally familiar with for one or several due to user can spend how long substantially have number in the heart, by the numerical value of comprehensive traffic relatively above, if user is easy to estimate a current selection route institute spended time.Even if need not estimate institute's spended time, as long as be aware of relative traffic, the traffic on user just can satisfy the need has had an expection, selects thus.
In the application of some electronic navigations, many candidate's traffic routes can be provided.Generally can follow the option such as " shortest time ", " short line ", " whether walking toll road " to distinguish.But do not consider the contrast situation of current traffic condition and the history traffic same period, ignore the relative situation of change that people can be more responsive.In fact, under congestion, people not necessarily can select " shortest time ", because the difference of time is probably trickle, and driving experience, particularly to the impression of change (compared with at ordinary times) relatively of blocking up, then more can affect the selection of people to traffic route.According to the present invention, in the application of these navigation through electronic, except the option such as " shortest time ", " short line ", also can add the option of relative traffic (such as, " maximum comprehensive relative velocity index ", " minimum comprehensive congestion index relatively "), or, in the explanation of every bar alternative route, directly provide relative traffic (such as, " comprehensive relative velocity index=1.075 ", " comprehensive congestion index=0.95 relatively ").Thus, the user of electronic navigation more can respect the impression of oneself (such as, the requirement for the time, the requirement for path length or the impression for relative traffic, or consider above) and makes a choice.
Be described above embodiments of the invention.But the spirit and scope of the present invention are not limited thereto.Those skilled in the art can make more application according to instruction of the present invention, and all within the scope of the present invention.
Claims (10)
1. on map, embody a method for relative traffic, comprise the steps:
Road on map is carried out segmentation;
Obtain current traffic condition and the history average traffic same period situation of each segmentation road;
Based on current traffic condition and history average traffic same period situation, calculate the relative traffic of each segmentation road; And
The relative traffic of each segmentation road calculated is presented on map.
2. method according to claim 1, wherein, described traffic is passage rate.
3. method according to claim 2, wherein, calculates the relative traffic of each segmentation road by being compared with the history average passage rate same period by current passage rate.
4. method according to claim 1, wherein, described traffic is congestion index.
5. method according to claim 4, wherein, calculates the relative traffic of each segmentation road by being compared with the history average congestion index same period by cur-rent congestion index.
6. method according to claim 1, wherein, is presented on the relative traffic of each segmentation road calculated on map and comprises: present the segmentation road on the map with different traffic relatively with different colours.
7. select a traffic route method, comprise the steps:
According to departure place and destination, map identifies many candidate's traffic routes;
Obtain current traffic condition and the history average traffic same period situation of every bar candidate traffic route;
Based on current traffic condition and history average traffic same period situation, calculate the relative traffic of every bar candidate traffic route; And
Traffic route is selected according to the relative traffic of every bar candidate traffic route.
8. method according to claim 7, wherein:
Obtain current traffic condition and the history average traffic same period situation of every bar candidate traffic route, comprising: every bar candidate traffic route is carried out segmentation, obtain current traffic condition and the history average traffic same period situation of each segmentation of every bar candidate traffic route; And
Based on current traffic condition and history average traffic same period situation, calculate the relative traffic of every bar candidate traffic route, comprise: based on current traffic condition and the history average traffic same period situation of each segmentation of every bar candidate traffic route, calculate the relative traffic of each segmentation of every bar candidate traffic route.
9. method according to claim 8, wherein, selects traffic route according to the relative traffic of every bar candidate traffic route, comprising: select traffic route according to the relative traffic of each segmentation of every bar candidate traffic route.
10. method according to claim 8, wherein, select traffic route according to the relative traffic of every bar candidate traffic route, comprising:
The relative traffic of each segmentation of every bar candidate traffic route is weighted summation according to each point of segment distance respectively, obtains every bar candidate traffic route comprehensive traffic relatively separately; And
Traffic route is selected according to the respective comprehensive traffic relatively of every bar candidate traffic route.
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| CN201510307270.1A CN104931065B (en) | 2015-06-05 | 2015-06-05 | Map and traffic route with relative traffic |
| PCT/CN2016/084682 WO2016192666A2 (en) | 2015-06-05 | 2016-06-03 | Map and travel route indicating relative traffic conditions |
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| CN116858274B (en) * | 2023-08-22 | 2024-04-09 | 大拓无限(重庆)智能科技有限公司 | Path planning method and device |
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| WO2016192666A3 (en) | 2017-02-09 |
| WO2016192666A2 (en) | 2016-12-08 |
| CN104931065B (en) | 2018-03-13 |
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