CN103971531B - A kind of acquisition methods of graphical real-time traffic information - Google Patents
A kind of acquisition methods of graphical real-time traffic information Download PDFInfo
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- CN103971531B CN103971531B CN201310042454.0A CN201310042454A CN103971531B CN 103971531 B CN103971531 B CN 103971531B CN 201310042454 A CN201310042454 A CN 201310042454A CN 103971531 B CN103971531 B CN 103971531B
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Abstract
The invention provides the acquisition methods of a kind of graphical real-time traffic information, belong to intelligent transportation field, including: terminal unit by current driving to position longitude and latitude, travel direction and speed be uploaded to traffic information service platform；Traffic information service platform according to described in the position longitude and latitude uploaded determine the section numbering of vehicle place road；Traffic information service platform is numbered according to described position longitude and latitude, travel direction, speed and section, and the graphical real-time traffic information being likely at least one crossing of traveling in the preset range of search vehicle front or surrounding is handed down to terminal unit displaying.By method provided by the invention, it is possible to show that in the process that user travels front is likely to the multiple crossings graphical real-time traffic information travelled, it is to avoid at fast certain Lu Shicai that arrives, user learns that this section blocks up.User can realize preferentially choosing more unimpeded sections of road, better evades congested link.
Description
Technical field
The present invention relates to intelligent transportation field, particularly to the acquisition methods of a kind of graphical real-time traffic information.
Background technology
Along with day by day increasing and the development of intelligent transportation of urban congestion situation, increasing user is using Real-time Traffic Information.
At present, realize, by various navigation terminals (navigator, mobile phone etc.), the application that road conditions show very universal.But driver is in wholwe-hearted driving procedure, from the map of navigation terminal, not easily recognize the road conditions travelling front main roads.In order to the display of clear and definite travels front main roads road conditions, a lot of products show front road conditions with the form of simple diagram.
Chinese Patent Application No. 201010174038.2, the patent application of " providing the method and system of graphical real-time traffic information " by name provides the method and system of a kind of graphical real-time traffic information, when navigation terminal shows Real-time Traffic Information, improve the definition that road shows.Chinese Patent Application No. 201110308758.8, the patent application of by name " method that a kind of information trigger position is chosen and device " provides the choosing method of the display position of a kind of graphical real-time traffic information, figure can be made to trigger the traffic of picture display junction ahead in place, be better understood by front road conditions and decision-making for user.
But, prior art only provides the generation method of graphical real-time road and the selection principle of graphical real-time traffic information trigger position, is not but provided that the traffic information travelling multiple crossing, front.
For the patent application of 201110308758.8, which provide the choosing method of graphical real-time traffic information trigger position, but the graphical real-time traffic information at one crossing, front can only be provided, the road conditions at multiple crossing, front can not be provided.As it is shown in figure 1, when user to drive to B ground from Fig. 1 A, if there is graphical real-time traffic information O, M, N position, what O place reacted is the road conditions in A-O, O-M, O-N section, and what M place reacted is the road conditions of M-P, M-B, and what N place reacted is the road conditions of N-B, N-F.The graphical real-time traffic information at O point place can only be triggered and then be shown to according to the triggering method of this application the terminal of user, if but thick line place gets congestion in figure, user drives to O-M centre position and its is possible to be triggered to M place graphical real-time traffic information, now to arrive B point, congested link M-B can only be walked.
Summary of the invention
In view of this, it is an object of the invention to provide the acquisition methods of a kind of graphical real-time traffic information, for providing a user with the graphical real-time traffic information at multiple crossing.
The invention provides the acquisition methods of a kind of graphical real-time traffic information, including:
Terminal unit by current driving to position longitude and latitude, travel direction and speed be uploaded to traffic information service platform；Traffic information service platform according to described in the position longitude and latitude uploaded determine the section numbering of vehicle place road；
Traffic information service platform is numbered according to described position longitude and latitude, travel direction, speed and section, and the graphical real-time traffic information being likely at least one crossing of traveling in the preset range of search vehicle front or surrounding is handed down to terminal unit displaying.
The invention provides the application process of a kind of graphical real-time traffic information, can show in the process that user travels that front is likely to the multiple crossings graphical real-time traffic information travelled by the method, it is to avoid at fast certain Lu Shicai that arrives, user learns that this section blocks up.If user is appreciated that the road conditions that front Multiple Intersections associates with travelling now, then can realize preferentially choosing more unimpeded sections of road, better evade congested link.
Accompanying drawing explanation
Fig. 1 is the principle schematic obtaining junction ahead graphical real-time traffic information in background technology；
The acquisition methods flow chart of a kind of graphical real-time traffic information that Fig. 2 provides for the embodiment of the present invention；
Fig. 3 is the principle schematic judging forward extent in the embodiment of the present invention；
Fig. 4 is the principle schematic obtaining junction ahead graphical real-time traffic information in the embodiment of the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail.
Embodiments provide the acquisition methods of a kind of graphical real-time traffic information, it is possible to make the graphical real-time traffic information at multiple crossing, terminal display front, be better understood by front road conditions for user and carry out rational decision-making.
The acquisition methods flow chart of a kind of graphical real-time traffic information that Fig. 2 provides for the embodiment of the present invention, comprises the following steps:
Step 201, user use terminal unit (such as automatic navigator, mobile phone, PND etc.) that the position (longitude and latitude) of vehicle current driving, direction, speed are uploaded to traffic information service platform.
Step 202, traffic information service platform determine the section numbering of user place road according to the longitude and latitude position uploaded.This section numbering is the section numbering of the map being pre-stored in traffic information service platform.
Longitude and latitude position that step 203, traffic information service platform are uploaded according to user, direction, speed determine travel direction, then the section numbering determined according to travel direction and step 202, in search front (or surrounding) certain limit, user is likely to the graphical real-time traffic information at the several crossings travelled.Traffic information service platform generates all graphical real-time traffic informations in whole city in real time.
Wherein, the defining method of travel direction is: (determined voluntarily by traffic information service platform when terminal unit continuous several moment, such as can be decided to be interval 5 minutes) passback position only one of which, and speed is when being 0, prove that this user is in dead ship condition, then all graphical real-time traffic informations in (border circular areas) certain limit around searching for；When terminal unit continuous passback of several moment position only one of which, and when speed is not 0, it was demonstrated that this user locates transport condition, then all graphical real-time traffic informations in the certain limit of search front；When terminal unit continuous passback of several moment position is not 1, it was demonstrated that this user is in driving process, and the direction of now terminal passback is the actual travel direction of user, according to this range of graphical real-time traffic information in search front, direction.
In the defining method of travel direction, it is important to comprehensively will judge according to the longitude and latitude location point of user's passback, direction, speed, individually judging with one of them can be inaccurate.Such as: a location point only passed back by a car in 5 minutes, but speed is 50KM/H, so now cannot take for vehicle and be in halted state, and reality is transport condition certainly, travel direction is that (such as vehicle is travelling user's upstream direction always, should returning 10 location points, result network there is a problem or equipment fault etc., has only returned a location point)；A location point only passed back by one car in 10 minutes, and speed is 0KM/, then may determine that now stationary vehicle；One car returns 10 location points in 5 minutes, it was demonstrated that this user is transport condition, and travel direction is user's upstream direction.
In addition, the decision method in front is: the topological relation of section, user place numbering, travel direction and pre-stored map that traffic information service platform is determined according to step 202, finds out user and is likely to the graphical real-time traffic information at each crossing of certain limit, front travelled.Described front certain limit can be determined voluntarily according to service condition, can be such as front sector region 3KM(fan angle it be determine centered by the travel direction of car, such as, in Fig. 3, fan angle is 60 degree, and the direction of arrow represents the travel direction of car, then angle is exactly 30 degree).Crossing number is determined voluntarily also dependent on service condition, for instance can be 2 crossings.This mainly considers that being likely to qualified graphical real-time traffic information in the certain limit of front has a lot of, if all displayed, one is that hardware cannot all be shown；Two is a lot of of displaying, and user does not know which selects better on the contrary.In addition in the process travelled, the time for user's decision-making is very short, it is generally known that the crossing road conditions in about 2, front are just passable, if easily affecting user's decision-making on the contrary too much.
Such as: certain car travels A place in the diagram, and travel direction is the direction of A to P, all has graphical real-time traffic information at O, M, N, L place.Topological relation according to the map deposited in traffic information service platform is learnt, A to P does not allow when travelling, and namely from A-O-L, but can not can keep straight on and turn right, namely can A-O-M-P, A-O-N, A-O-M-B.Owing to there being graphical real-time traffic information at O, M, N, L place, and can not turn left, so only need to by the graphical road conditions search at M, N, L place and be issued to terminal.
Step 204, traffic information service platform will search satisfactory graphical real-time traffic information and be handed down to subscriber terminal equipment.
The graphical real-time traffic information received is displayed for user's decision-making by step 205, terminal unit.
Embodiments provide the application process of a kind of graphical real-time traffic information.Can show in the process that user travels that front is likely to the multiple crossings graphical real-time traffic information travelled by the method, user is avoided to learn that this section blocks up at fast certain Lu Shicai that arrives, and now do not had other roads to choose, the section of congestion ahead can only be selected.If user is appreciated that the road conditions that front Multiple Intersections associates with travelling now, then can realize preferentially choosing more unimpeded sections of road, better evade congested link.
In a word, the foregoing is only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.
Claims (3)
1. the acquisition methods of a graphical real-time traffic information, it is characterised in that including:
Terminal unit by current driving to position longitude and latitude, travel direction and speed be uploaded to traffic information service platform；Traffic information service platform according to described in the position longitude and latitude uploaded determine the section numbering of vehicle place road；
Traffic information service platform is numbered according to described position longitude and latitude, travel direction, speed and section, and the graphical real-time traffic information being likely at least one crossing of traveling in the preset range of search vehicle front or surrounding is handed down to terminal unit displaying；
Described section is numbered the section numbering of the map being pre-stored in traffic information service platform；
The step of the graphical real-time traffic information being likely at least one crossing of traveling in described search vehicle front or preset range around specifically includes:
When terminal unit continuous passback of more than one cycle position longitude and latitude only one of which, and speed is when being 0, show that this vehicle is in dead ship condition, then search for the graphical real-time traffic information at least one crossing within the scope of the border circular areas of this vehicle periphery one pre-set radius according to section numbering；When terminal unit continuous passback of more than one cycle position longitude and latitude only one of which, and speed is when being not 0, show that this vehicle is in transport condition, then according to the graphical real-time traffic information at least one crossing in the travel direction of vehicle passback and numbering search vehicle front one, section preset range；When terminal unit continuous passback of more than one cycle position more than one, show that this vehicle is in driving process, the actual travel direction that travel direction is vehicle of now terminal unit passback, according to the graphical real-time traffic information at least one crossing in this search vehicle front one, direction preset range.
2. the acquisition methods of graphical real-time traffic information according to claim 1, it is characterised in that described graphical real-time traffic information is generated in real time by traffic information service platform and periodically updates.
3. the acquisition methods of graphical real-time traffic information according to claim 1, it is characterised in that the decision method of described vehicle front preset range is:
Topological relation according to described section numbering, travel direction and pre-stored map, is set to the sector region of vehicle front 3KM radius, and this fan angle is centered by the travel direction of vehicle, and angle is 60 degree, and travel direction both sides angle is 30 degree respectively.
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| CN112289033A (en) * | 2020-12-23 | 2021-01-29 | 智道网联科技(北京)有限公司 | Real-time traffic information processing method and device |
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| CN106157647B (en) * | 2015-03-31 | 2019-08-13 | 高德软件有限公司 | A kind of road information prompting method and device |
| CN106205178A (en) * | 2016-06-30 | 2016-12-07 | 联想(北京)有限公司 | A kind of vehicle positioning method and device |
| CN106355923B (en) * | 2016-09-08 | 2018-10-09 | 江苏大学 | Wisdom navigation system and air navigation aid based on Real-time Traffic Information under car networking environment |
| CN109743549A (en) * | 2018-12-29 | 2019-05-10 | 北京辰安科技股份有限公司 | Front video acquiring method, device and breakdown lorry based on Internet map |
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