The invention relates to a method for creating an individual
Traffic forecast for
a vehicle, wherein using tram-like traffic patterns
the traffic forecast for
Trajectories of the vehicle is created and where the gangway-like
Traffic patterns formed by traffic information from the Internet
and / or updated as well as to a device for creation
and visualization of one or the traffic forecast.
are for the orientation of a driver in unknown areas for vehicles
well known. The best known versions are simple navigation systems
to call that over
stored digital maps and automatically with
Specifying a start and a destination calculate a route, the
For example, by a minimum distance or travel time
distinguished. Consider further developed devices
not only static information when calculating the routes,
but also dynamic traffic information, such as temporary construction sites
or current traffic jams.
Of course, the latter type of devices must be ensured
be that the dynamic traffic information is up to date,
so that the motorist, for example, does not fall into a straight
or an already resolved one
Traffic jam is led around.
The publication DE 199 39 625 A1
discloses a method for retrieving information from an information network. In the proposed method, a request is sent to a data processing device in a first step, the request being designed, for example, as a route composition. In a further step, information from various data sources in the information network, for example on the Internet, is queried and collected by the data processing device. After converting the collected information into a consistent format, the information is optionally filtered and sent back in response to the request. One possible application of the method relates, for example, to the request for traffic reports.
The publication DE 101 43 531 A1
relates to an information system for a motor vehicle, which comprises an on-board computer with a display device, which communicates with a server via a wireless communication system. The server takes over the task of collecting traffic news sites from the Internet, extract messages from relevant fields and transmit them to the on-board computer, so that they can be displayed in the display device to the driver.
The publication DE 103 57 127 A1
relates to a method for generating individual traffic forecasts in a vehicle using stored traffic hydrographs and / or determined current traffic situation data.
the illustrated method are current traffic situation data of
a central location or the Internet for updating
the hydrographs stored inside the vehicle on request
transferred to the vehicle.
Based on the updated hydrographs, the vehicle will be individualized
Traffic forecasts for
The publication DE 100 37 827 A1
, which is probably the closest prior art, relates to a vehicle-autonomous traffic system. The vehicle-autonomous traffic information system comprises a traffic data memory, a vehicle location detection means as well as a traffic computer unit and a display unit. In the traffic data memory, traffic-line-type traffic-bearing patterns are stored, from which the traffic-computer unit carries out a traffic prognosis, starting from the current vehicle location and taking account of the stored traffic-location patterns in good time. According to a subclaim, it is provided that the gangway-like traffic-bearing patterns can be updated by traffic information supplied by the vehicle's exterior, for example via radio or the Internet.
The problem underlying the invention is the updating
the traffic information to realize that on the one hand high
current traffic information and on the other hand on the Internet
Task is through a method for creating a traffic forecast
with the features of claim 1 and by a device for
Creation and visualization of a traffic forecast
solved with the features of claim 11. Advantageous or preferred embodiments
are claimed by the subclaims
or by the following description or figures
The invention relates to a method for generating a traffic forecast, in particular for generating a vehicle-specific traffic forecast, which preferably allows starting from the current location of the vehicle optimal routes to network nodes of the current vehicle location enthal be determined network area. In this way, not only route suggestions are made, as discussed in the introduction in connection with simple navigation systems, but the route suggestions already consider in particular a travel time, which is calculated on the basis of the traffic forecast. The traffic forecast for at least one of possible routes or routes of the vehicle is created. Alternatively, any place can be selected instead of the current location of the vehicle.
the compilation of the traffic forecast will be based on traffic-like traffic patterns
The gangway-like traffic patterns are preferably defined
as time- and location-dependent estimation data about a
or more, for
the traffic situation indicative traffic parameters. For example, include
the estimated data
the expected, average travel times on track edges between
two road network nodes in the traffic network area to the corresponding one
Time. In particular, the gangway-like traffic patterns
trained as traffic gullies, which are the expected,
based on empirical data temporal spatial traffic dynamics based
of traffic parameters such as the average vehicle density, medium
Describe vehicle speed etc. Preferred are under
also shows traffic patterns that are
from one or more customizable traffic condition objects
the types of "free
Traffic "," synchronized traffic "," compressed
synchronized traffic "and" moving
wide traffic jams "
For the production of the traffic forecast from the traffic-line-like traffic patterns is based on the recognized in the prior art disclosure DE 103 57 127 A1
such as DE 137 827 A1
the applicant, the disclosure of which is hereby fully incorporated into the present application via referencing.
gang-like traffic patterns - hereinafter only traffic patterns
to be named
formed and / or updated by traffic information from the Internet.
Such traffic information includes, for example, relevant ones
Construction sites, travel times, traffic or traffic reports.
According to the invention, it is provided
that this traffic information from an internet search engine
collected and to form and / or update the traffic patterns
Invention is based on the consideration,
that is on the internet provider for
Search engines, such as GoogleEarth, have found that
dynamic, location-based and traffic-relevant information nationwide
and thus form a kind of data hub. Such search engines
provide a platform for navigational information
collect and provide. Taking advantage of the existing Internet search engines
is achieved that the update of existing in the vehicle
Navigation information through centrally available information
and thus a high level of
and forecast quality
becomes. In other words
the problem of "data update
from outside ", ie externally from
the vehicle, novel and inexpensive or even free
Internet search engine is preferred as an index-based search engine
formed, wherein in an advantageous embodiment, a portion of the index
sorted by geographical indications and in particular traffic information
indexed. Alternative or supplementary
is the internet search engine designed as a real-time internet search engine,
so that collected data regularly, at
Traffic information in particular every hour or every minute, on
become. The Internet search engine preferably has a public
Data interface on, via
the traffic information and / or the gangway-like traffic patterns
and / or providing the vehicle individual traffic forecasts
become. In particular, this interface is not configured user-individually
limited in use.
a preferred embodiment
Internet search engine based on a request the current location
of the vehicle and / or the last update time and / or
the size of the area
from the current vehicle location, an individualized for the vehicle
Compilation of traffic information and other traffic forecasts
relevant information (eg construction sites, traffic reports, travel times)
ready. Based on this compilation, the gangway-like
Traffic patterns formed and / or modified. In particular, collects
the internet search engine recent changes in the relevant
Environment around the vehicle location, for example all newly furnished
and canceled construction sites, all current accidents, all relevant infrastructure changes
and current traffic messages with messages, for example in
Form of TMC messages. This information will be in a next step
to select the valid
Hydrographs ("matching"), for the creation
new hydrographs and to adapt the information known in the vehicle
In a preferred embodiment the traffic forecast created autonomously in the vehicle. In this embodiment, the traffic information is thus transmitted from the Internet of the Internet search engine to the vehicle and used there to form or update the traffic pattern. Preferably, it is provided that the traffic patterns form part of an autonomous gangway archive located in the vehicle. In a preferred embodiment, the traffic information, in particular the dynamic traffic information, individually compiled for the vehicle via the Internet search engine and centrally processed before they are transmitted to the vehicle.
the gangway-like traffic patterns stored in the vehicle
are also the advantage that the traffic forecast without
Connectable to the Internet and / or the Internet search engine
is. This is achieved in particular by the fact that fallback levels
exist if not available
Communication connection to the Internet can be used.
an alternative embodiment
the traffic forecast is vehicle-specific in a central
Server created and transmitted to the vehicle. In this case
become the traffic patterns or the Ganglinienarchiv in
saved to the central server and optionally by the dynamic
Updated traffic information. In a preferred embodiment
In this variant, the central server is designed as the Internet search engine.
a practical design
the procedure will be in addition to the dynamic traffic information
and / or the traffic patterns and / or the Ganglinienarchiv additional information
transmitted from the Internet search engine to the vehicle. This particular
dynamic additional information concerns, for example, weather, dangers,
Points of interest (POI, for example petrol stations, hotel information),
So generally all for
the vehicle and the navigation other relevant dynamic
An optional concretization of the procedure becomes visualization
in the vehicle, the results of the traffic forecast and / or the
Additional information and / or personalized vehicle information
presented on the basis of techniques from the Internet. To such
for example, representations in the form of aerial photographs, bird's eye views
and / or route displays. For this necessary graphic material,
such as. The aerial photographs, preferably by the Internet search engine
provided. Additional information can be added as an option
Form of symbols in two or
Also shown in three-dimensional representation.
are the traffic information and / or the additional information
at vehicle start and / or in a cyclic time grid and / or
updated on request of the vehicle. It will after the vehicle start
automatically send a request to the internet search engine for automatic
Collection of individual information sent, so that one
Updating the information available in the vehicle. Especially
in the request is the current location of the vehicle, the last update time
and the size of the person of interest
Transferred to the respective vehicle location. After the internet search engine on the
current time owns,
is not a time transfer
(Timestamp) from the vehicle to the Internet search engine necessary.
Reduction and thus the saving of communication bandwidth
the ride or problems with "dead spots" or other communication problems during the
is preferably provided that the traffic information and / or
Additional information collected in the area of good reception, for example
Spots ", broadcast
become. Thus, the information is intermittently transmitted similarly to a "charging operation".
The invention provides additional information on a display device,
For example, in a navigation view, even without previous
Route input for
the current vehicle environment displayed to the driver point information
to offer the current environment.
The invention further relates to a device for generating and visualizing a traffic forecast with the features of claim 11. This device is designed in particular program technically and / or circuitry for carrying out the method described above. According to the invention, the device comprises a display device, in particular a screen for displaying the traffic forecast and / or additional information, a memory device for storing gangway-like traffic patterns or a gangway archive and a processing device which is designed to generate the traffic forecast on the basis of the gangway-like traffic pattern. The device further comprises a communication unit, which is designed for wireless communication with an Internet search engine, wherein traffic information, in particular dynamic traffic information, for updating and / or forming the gangway-like traffic patterns from the Internet search engine the communication unit are transmitted.
it is provided that the device is connected via a locating device,
in particular a GPS system, stored digital road maps
and / or a navigation system. The communication unit
is preferably based on GSM or UMTS.
a particularly advantageous embodiment includes the
Device a data interface for the use of a public
Access of the Internet search engine is formed.
the device or the method are the traffic information
and / or traffic forecasts and / or additional information by a
Visualization technology, such as the Internet portal
Google Earth offers shown. In addition, personalized vehicle information,
such as recorded past rides, with the visualization technique
be made visible.
Features, advantages and effects of the invention will become apparent
the following description of preferred embodiments. Showing:
1 a first embodiment of the method according to the invention in a block diagram;
2 a second embodiment of the method according to the invention as a first concretization of the first embodiment;
3 - 7 a third embodiment of the method according to the invention as a second concretization of the first embodiment.
or corresponding parts or sizes
in the figures, each denoted by the same reference numerals.
The 1 illustrates in a schematic block diagram a first embodiment of a device according to the invention 1 for creating and visualizing a traffic forecast as well as its communication with an internet search engine 2 ,
From the forecasting device 1 is in the representation of 1 a processing device 3 , a tracking unit 4 as well as a communication unit 5 indicated. To the processing device 3 is a storage device 6 connected or is as part of the processing device 3 educated. A display device 7 to illustrate the traffic forecast, etc. is outlined in the following figures.
The locating unit 4 is located at a network connection level and, alternatively, as a vehicle 10 ( 2 ) or as an external GPS mouse in the vehicle 10 or designed as a GPS simulation. Function of the locating unit 4 is the current position of the vehicle 10 and via a converter 8th to the processing device 3 the forecasting device 1 to hand over.
The processing device 3 is designed as a local web server in the vehicle and so realized that it is through the communication unit 5 with the internet search engine 2 can communicate. The communication unit 5 preferably allows broadband communication, which is alternatively designed as a GPRS connection or UMTS connection. In other embodiments, other wireless communication paths are possible.
In this case, the processing device 3 arranged in a process level and sends a request 11 ( 2 ) to the internet search engine 2 so the internet search engine 2 depending on the request 11 ( 2 ) provides relevant information. This information is provided by the internet search engine 2 via a file interface 9 to the storage device 6 the processing device 3 or to the processing device 3 to hand over.
Information is preferably formed as static files
and include alternatively or additionally
Additional information, such as Points of Interest (POI),
in particular via petrol stations,
Traffic information in the form of metadata, for example construction sites,
Congestion warnings and the like,
but in special embodiments
also traffic forecasts as well as graphic elements, such as environmental images
from a bird's eye view. The files are in a file system level
For a better understanding of the forecasting device 1 and communication with the internet search engine 2 will be in the 2 their interaction with reference to a second embodiment, which represents a concretization of the first embodiment, explained in detail.
In a first step, the vehicle determines 10 through the locating unit 4 his own position. In a next step is about the communication unit 5 a request 11 to the internet search engine 2 directed, the request being the location of the vehicle, the last update time previously transmitted data and the size of a region of interest around the vehicle 10 includes or consists of. Upon receipt of the request 11 in the internet search engine 2 compiles this vehicle-specific, dynamic information from the Internet WWW. This dynamic information includes on the one hand dynamic traffic information, so on construction sites, travel times and traffic reports, which are preferably designed as a TMC message, and on the other additional information, such as POI, gas station prices, hotel deals, weather and / or danger information. The collection of dynamic information occurs either before the request 11 through the vehicle 10 so the request 11 can be answered immediately without significant delay or the request 11 Starts a collection process to ensure that only up-to-the-minute information is provided. This dynamic information is transmitted through the data interface 9 the internet search engine 2 to the storage device 6 the processing device 3 in the forecasting device 1 transfer. In a next step, with this dynamic information from the Internet WWW in the vehicle 10 Updated existing information and, for example, to select a current transition line ("matching"), to create new hydrographs or to adjust the in-vehicle 10 or in the storage device 6 used existing information. Like in the 2 is shown, the dynamic information in particular for modifying a Ganglinienarchivs, which is stored for example on a disk and / or on CD / DVD used. Based on the modified hydrographic archive and using the current position of the vehicle as determined by vehicle location 10 be in a digital map based on the current position S of the vehicle 10 estimated and recorded the travel times to different nodes in a traffic network via a traffic forecast. In this case, it is provided in particular that the traffic forecasts are generated by a timely and location-specific use of the vehicle-side stored, gangway-like traffic pattern. Based on this traffic forecast, the next step is to compare the predicted travel times (given in minutes) with the travel time in free traffic. If the forecast travel time exceeds the travel time in free traffic by a relative or absolute limit amount, the assigned travel route is assessed as congestion risk. This is in the example in 2 for example, at the edges C, D, G and H the case.
For information of the driver can on a display device 7 different information can be presented: So it is possible in particular alternatively that the digital map 12 with the displayed travel times, the table with the edge travel times or predicted traffic jam objects on the display device 7 being represented. Other possibilities are the visualization of congestion objects on the display device 7 on aerial images originating, for example, from Google Earth or the additional dynamic information is displayed in particular as point information and / or two- or three-dimensional symbols
The 3 to 7 show a third embodiment of the method according to the invention, which also forms a possible concretization of the first embodiment. In the third embodiment, some of the method steps are performed by the internet search engine 2 and not by the forecasting device 1 carried out.
To carry out the process according to the invention, the following process steps are generally carried out:
- 1. Collection of information on the Internet.
- 2. Individualization of the information collected in relation to the requesting vehicle 10 or the request 11 ,
- 3. Modification of the Ganglinienarchiv.
- 4. Preparation of a traffic forecast.
- 5. Optional: Collection and provision of additional dynamic information.
Depending on the embodiment of the method is by the Internet search engine 2 only step 1, only steps 1 and 2, only steps 1, 2 and 3 or only steps 1, 2, 3 and 4 are performed. The respective results of the process steps are sent to the vehicle 10 , in particular to the forecasting device 1 for further processing or visualization.
In the in 3 The third method alternative shown, the steps 1, 2, 3 and 4 by the Internet search engine 2 carried out. After a self-locating of the vehicle 10 through the locating unit 4 becomes a request 11 via a broadband internet connection to the internet search engine 2 posed. In response to the request puts the Internet search engine 2 vehicle-related, dynamic information together. Together with the information from the request 11 Individual, dynamic information or traffic forecasts are generated. Furthermore, further network-related information is provided. The entirety of the information provided is then transmitted to the vehicle via the broadband internet connection 10 transmitted and can on the display device 7 z. B. be presented in the form of individual, dynamic information or traffic forecasts. Of course, all display options, as related to of the 2 have been described, possible.
The 4 illustrates again the communication between the vehicle 10 and the internet or the internet search engine 2 , As request 11 the individual vehicle position is transmitted. A transmission of a time stamp is not necessary because the Internet search engine 2 itself has sufficiently accurate time information. After compiling the information through the internet search engine 2 be individually prepared for the driver information, such as calculated dynamic arrival times, probabilities of the forecast, current disabilities and hazards, as well as traffic forecasts and weather information to the vehicle 10 transmitted. This information can be obtained by means of the display device 7 being represented.
The 5 lists again the different functions of the Internet search engine 2 at the third procedural alternative. After handing over a request 11 from the vehicle 10 to the internet search engine 2 A variety of dynamic information is provided, such as "matching" the vehicle to a map, zooming the map to the current vehicle environment, dynamic vehicle-related graphics, or texts on the selected dynamic information Further, as dynamic information is provided by the Internet search engine 2 Selection menus for various other information such as forecasts, points of interest, weather, etc. provided. With this provided dynamic information, network-related information or traffic forecasts may be updated with an older time stamp delta T1. On the basis of the compiled or updated information vehicle-related, individual dynamic information and traffic forecasts are created and sent to the vehicle 10 transmitted for visualization.
Another detail of the third alternative method is in the 6 shown, after passing the request 11 from the vehicle 10 to the internet search engine 2 be provided dynamic information. The provision is preferably made such that via an interface of the Internet search engine 2 Traffic messages are received, these traffic news are used to create and update hydrographs and thus a gait database is updated or modified. Based on the modified gait database then the network-related, dynamic information, in particular the traffic forecasts are provided and to the vehicle 10 transmitted.
The 7 shows the method according to the third alternative again in a modified representation, wherein the positioning unit referred to here as positioning 4 the own position of the vehicle 10 is determined and in the display device 7 z. B. is displayed on a digital map or an aerial view. About the here called transmission / reception unit communication unit 5 The dynamic vehicle-related information from an Internet application running on the Internet search engine into the vehicle 10 imported and in the manner already described on the display device 7 shown.