DE102017003356A1 - Method for detecting non-passable sections - Google Patents

Abstract

The invention relates to a method for detecting non-passable sections (S) for long vehicles for route guidance. According to the invention, recognition of a non-long-passable section (S) is carried out on the basis of traffic sign recognition (V) and / or on the basis of information (I) stored in a digital traffic map (2), wherein in the recognition of a non-long-passable section (S Construction sites (B) and / or emergency vehicles (E) are considered and depending on the detection of non-passable long-distance sections (S) route planning or active route guidance in recognition of at least one non-passable long-distance section (S) a new route planning is carried out.

Description

The invention relates to a method for detecting non-passable sections of track for long vehicles for route guidance.

From the DE 10 2012 011 224 A1 is a method for warning a driver of a vehicle before entering a traffic area of a road network, for the onward movement of the vehicle to a connection destination is not possible or only by performing predetermined special maneuvers of the vehicle is known. The method is used in the context of an active route or route guidance and comprises the following steps:

• - providing vehicle-specific data,
• Providing navigation data indicating a usable traffic space of the traffic area of the road network for the vehicle,
• - determine whether the vehicle will turn or enter the traffic area of the road network,
• Checking on the basis of the vehicle-specific data and the navigation data, whether the usable traffic space of the traffic area is sufficiently large to ensure a safe entry into the usable traffic space, and whether to continue to the connection destination, a passage of the usable traffic space or an exit from the usable traffic space without performing a special maneuver is possible, and
• - Issuing a warning in the event that the usable traffic area of the traffic area is not large enough to ensure safe entry into the traffic area, or for the onward journey to the terminal destination, the passage of the usable traffic space or the exit from the usable traffic space carrying out a Special maneuvers required.

The term traffic area of the road network is understood to mean all motor vehicles, cars, lorries and buses that are passable traffic areas.

• – Aufnahme mindestens eines Bildes einer Fahrzeugumgebung mit einer Kamera,
• – Erkennen des Vorhandenseins und der Klasse eines oder mehrerer Hauptzeichen aus den aufgenommenen Bilddaten,
• – Erkennen des Vorhandenseins eines oder mehrerer zu dem oder den erkannten Hauptzeichen zugeordneter Zusatzzeichen,
• – Klassifikation des Zusatzzeichens mittels eines Mustererkennungsverfahren soweit möglich und
• – Lesen und Interpretation des Zusatzzeichentexts mittels eines Texterkennungsverfahrens, sofern die Klassifikation nicht oder nicht vollständig möglich war.

Erkannte Texte werden dabei mit Situationsdaten, insbesondere einer aktiven Routenführung, verglichen.Furthermore, from the DE 10 2011 109 387 A1 a method for traffic sign recognition, the method comprising the following steps:

• Taking at least one image of a vehicle environment with a camera,
• Recognition of the presence and the class of one or more main characters from the recorded image data,
• Recognizing the presence of one or more additional characters associated with the recognized main character (s),
• Classification of the additional mark by means of a pattern recognition method as far as possible and
• - Reading and interpretation of the additional text by means of a text recognition procedure, if the classification was not or not completely possible.

Detected texts are compared with situation data, in particular an active route guidance.

The invention is based on the object to provide a comparison with the prior art improved method for detecting non-passable sections for long-distance vehicles.

The object is achieved by a method having the features specified in claim 1.

Advantageous embodiments of the invention are the subject of the dependent claims.

In a method of non-passable long-distance vehicle sections for route guidance, according to the invention, detection of a section of road not passable by the long-distance vehicle is carried out using traffic sign recognition and / or information stored in a digital traffic map, with construction sites and / or emergency vehicles are taken into account and depending on the detection of non-passable long-distance sections a route planning or active route guidance in recognition of at least one non-passable long-distance section a new route planning is performed.

In the present case, a long vehicle is understood to mean a vehicle whose maneuverability is restricted on certain sections of the route due to its length. These include, for example, trucks, buses and vehicle combinations.

The method makes it possible for the long-distance vehicles, in particular on unknown routes, to avoid a passage of sections which are not passable by the long-distance vehicle due to a section of track which is too large for a vehicle width and / or length. In this case, temporary obstacles in the form of construction sites and / or emergency vehicles are taken into account in an advantageous manner. In this way it can be prevented that, after entering such a section, costly turning maneuvers or a lengthy reversing operation have to be carried out in order to leave such a non-passable section of road again. This in turn results in a reduction in the risk of congestion, increased ride comfort for a driver of the long-haul vehicle, optimized route planning and short travel times.

Embodiments of the invention will be explained in more detail below with reference to a drawing.

Showing:

1 schematically a block diagram of a device for detecting non-passable sections for long vehicles for route guidance.

In the only one 1 is a block diagram of a possible embodiment of a device 1 for the detection of non-passable sections S for long vehicles for a route guidance shown.

In the case of long vehicles whose maneuverability is limited on certain sections S due to their length, it may happen, in particular in the presence of detours and congestion, that these long vehicles have to drive unknown sections with unknown sections S.

In order to avoid that such a long-distance vehicle a section S is traveled, which is not passable because of dimensions of the long-haul vehicle of this, such non-passable sections S are recognized during a route planning.

The recognition of these non-passable sections S is performed by means of a processing unit 4 based on a means of a traffic sign recognizer 3 performed traffic sign recognition V and on the basis of in a digital traffic map 2 deposited information I performed. Furthermore, temporary obstacles in the form of construction sites B and / or emergency vehicles E are taken into account. Data on the existence of such construction sites B and / or emergency vehicles E become the processing unit 4 from a navigation device 5 transmitted, wherein the emergency vehicles E and / or construction sites B in a manner not shown corresponding signals about their location and, where appropriate, a duration of use or the site B to one with the navigation device 5 communicate the communicating entity.

In this case, the detection of a non-passable from the long-distance section S based on on the traffic signs and / or in the information I of the digital traffic map 2 deposited data comprising road clearance heights and / or road clearance widths and / or road courses and / or angles of curves. Upon detection, vehicle-specific data, which include a length of the long-travel vehicle and / or a width of the long-travel vehicle and / or steering data of the long-travel vehicle, for example a turning circle, are taken into account.

Used in the determination of a route R by the navigation device 5 or in an active route guidance detected a non-passable from the long vehicle section S, this is taken into account in the route planning or active routing a new route planning is performed and an alternative route R is determined in which no passable from the long vehicle sections S are present.

The above-described functionality of the recognition of non-passable sections S and the consideration of these in the route planning can be integrated into the long-haul vehicle both as a vehicle equipment and as a retrofit solution.

Furthermore, the functionality is not limited to long vehicles, but applicable to any type of vehicles. In particular, the non-passability of sections S due to emergency vehicles E and construction sites B is therefore also available for other vehicles.

LIST OF REFERENCE NUMBERS

1

contraption

2

traffic ticket

3

Verkehrszeichenerkenner

4

processing unit

5

navigation device

B

Building site

e

emergency vehicle

I

information

R

route

S

stretch

V

Traffic Sign Recognition

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102012011224 A1 [0002]
• DE 102011109387 A1 [0004]

Claims (3)

Method for detecting non-passable sections (S) for long-distance vehicles for route guidance, characterized in that - detection of a section (S) that can not be traveled by the long-distance vehicle based on traffic sign recognition (V) and / or on a digital traffic map ( 2 Information (I) stored is carried out, - in the recognition of a not passable by the long-distance section (S) construction sites (B) and / or emergency vehicles (E) are considered and - depending on the detection of non-passable long-distance sections (S ) a route planning or in an active route guidance upon detection of at least one non-passable long-distance section (S) a new route planning is performed. A method according to claim 1, characterized in that the detection of a not passable by the long-distance section (S) based on traffic signs and / or in the digital traffic map ( 2 ) stored information (I), the - road clearance heights and / or - road passage widths and / or - road courses and / or - angles of curves include performed is performed. A method according to claim 1 or 2, characterized in that the detection of a not passable from the long-distance section (S) on the basis of vehicle-specific data, which - include a length of the long vehicle and / or - a width of the long vehicle and / or - steering data of the long-haul vehicle, is carried out.

Images