DE10313743B4 - Method and device for displaying driver information - Google Patents

Abstract

Method for displaying driver information in a motor vehicle, comprising at least the following steps: creating route guidance signals (ZF) from input destination data signals (Z), position signals (P) and map signals (K), determining at least one first route guidance object (G1) from the route guidance signals (ZF ), Map signals (K) and position signals (P), determining a route guidance display object (ZO) for displaying in the correct position in a display field (10, 20), the route guidance display object (ZO) being determined from the first route guidance object (G1) and Contains information about its position in the display field (10, 20), and output of the at least one route guidance display object (ZO) on the display field (10, 20), which is determined on the basis of the position signals (P) and map signals (K), whether a concealment object (V1, V2, V3) is arranged between the vehicle position and a geographical position of a sub-area (TB) of the first route guidance object (G1) t, characterized in that the route guidance display object (ZO) is generated by that sub-area (TB) of the first route guidance object (G1) depending on the map signals (K) and position signals ...

Description

The invention relates to a method and a device for displaying driver information, in particular for a vehicle navigation system.

Vehicle navigation systems determine from target data inputted by the driver, position data and map data guidance instructions that guide the driver to the destination along a safe, fast and direct route. The guidance instructions, in particular maneuvers to be carried out, are emitted acoustically or optically by the navigation system by issuing arrows on a display device in the area of the instrument panel of the vehicle. Furthermore, speeds of the own vehicle and other road users can be determined in part by distance sensors and thus dangerous situations can be detected.

In the optical output of route guidance instructions with the representation on a display field of a display device, generally generalized, in particular abstracted or simplified driving situation representations, e.g. B. intersection representations spent in which the driving maneuvers to be performed, z. B. a turn, highlighted.

Due to the generalized presentation of the driving situation and the graphically highlighted route guidance instructions, the driver's distraction from the traffic situation is kept low and the technical complexity of the current map determination and determination of the route guidance signals to be displayed is limited. Nevertheless, the attention of the driver is impaired by the required temporary view of the display device, in which he must first reorient himself each time and transmit the displayed information to his driving environment, his position and orientation, resulting in a reduction in driving safety. It is true that dangerous situations recognized by the control device of the navigation system can also be output acoustically on the display device and, if necessary, acoustically; In this case, however, the driver who views the driving environment is often unable to assign this information to the real situation quickly enough and therefore may not be able to react quickly enough to the dangerous situation in a corresponding manner. The sudden release of danger and warning signals can even lead to confusion of the driver in difficult driving situations that affect his attention.

Furthermore, especially in confusing intersection geometries, the placement of the route guidance instructions is problematic because z. B. turning maneuvers are often difficult for the driver to be transmitted in the right way from the display device to the road situation; Therefore, a driver often perceives a too early or too late turnabout in complex intersection geometries. Although this distance information or representations of the distance can be spent with decreasing bars, but also such additional information is often difficult for the driver to transfer the real driving situation and his attention - especially in difficult cornering, oncoming traffic and difficult to detect other road users such Bicycles and pedestrians - continue to affect.

In display devices with three-dimensional map display z. As the road to be covered, signs or the target itself highlighted. In this case, an observation point of the driver directed in the direction of travel can be selected in a generally selectable height above the vehicle. Due to the technical complexity, however, the content shown is often very abstract and incomplete. In this way and by deviations of the freely selectable viewing angle from the driver's actual perspective, it is made more difficult for the driver to establish a relationship with the driving situation which he has actually perceived.

Furthermore, methods and systems are known in which the driver relevant information directly z. B. via data glasses or head-up displays are faded into his field of view. This allows the driver to always keep his eyes on the road and the surrounding roadway situation and receive additional information. The US 5,883,739 describes a method in which images of the left and right field of view are formed and superimposed to form a stereo image on a behind the windshield lens. As a result, z. B. arrows are displayed as targeting objects.

From Int. J. of Vehicle Design, Vol. 2, 1998, A. Steinfeld and P. Green, it is known to display navigation information either on an instrument panel display or to superimpose the street scene on the windshield. With such an overlay, shorter response times of the driver are achieved than when output on the additional display device.

The DE 198 52 662 A1 shows a method for multimedia-based navigation of a vehicle in a road network, wherein the driving instructions that refer to prominent objects along the route, acoustically through voice output and by an optical output can be output to the driver. A computing device for route determination determines a route from a digital map and the position determined by a global positioning system. A computing device for outputting driving instructions detects distinctive objects that are linked to the driving instructions. The optical output can be effected in particular by application of the object on a display device.

The DE 100 23 160 A describes a map display device in which a map with buildings is displayed three-dimensionally or in perspective. Here, route guidance lines for displaying a detected route are displayed on the streets of the map. When the route guidance line is hidden from a building, the overlapped area of the route guidance line is displayed in a different color than the non-overlapped areas.

The US 6,289,278 81 . DE 19 813 300 A1 . DE 10 103 922 A1 and DE 10 138 719 A1 describe further methods and devices for presenting driver information.

In contrast, the method according to the invention and the device according to the invention have the particular advantage that route guidance instructions can be transmitted to the driver in a realistic manner without too much cognitive load and distraction from the traffic situation. Here, the driving instructions are used as destination objects and advantageously additional information as information objects in the correct position in a real or realistic image of the vehicle environment.

The present invention issued route guidance objects serve as route guidance instructions can in particular direction directions, z. B. extending over bends, intersections or whole roundabout or crossing systems arrows. Additional information may in particular about objects of the environment, eg. For example, references to buildings, their historical significance, functions or to landscape conditions such as rivers, mountains, lakes, landscapes, are spent.

According to the invention, the driver can keep an eye on the traffic situation and assign the route guidance instructions and possibly further information on the basis of the positionally correct assignment directly to the real positions in the traffic situation, without abstractions of the displayed information by z. B. Implementation of an arrow symbol to make real crossroads situations. Thus, he is cognitively less burdened and safer in his decisions.

According to the invention, the route guidance objects and optionally further information objects can advantageously be superimposed on a transparent viewing window in the field of vision of the driver between his driving environment and his position, in particular on the windshield itself or a visor arranged behind it. For this purpose, in particular, a projection onto the windshield or a transparent viewing window arranged behind it can take place; Furthermore, the representation can also be made on a lens worn by the driver himself, z. B. on a data glasses or a hinged visor of a helmet.

Furthermore, it is also a representation of the route guidance objects on a display device, for. B. in the field of instrument panel of the vehicle possible. Here, the driver perceived real driving environment or driving scene by z. For example, a camera attached to or in the vehicle is recorded and reproduced as a map representation on the display panel of the display device together with the route guidance objects and possibly information objects. The driver must take in this embodiment of the invention, although briefly the view from the field of vision of the road situation; However, since he realistically realistically finds in the display panel of the display device, the driving environment also seen by him, he can assign the displayed route guidance signals and possibly other object information directly.

The displayed route guidance objects are formed taking account of further obscuring objects or occlusion areas that are visible in the driver's field of vision. Here, the first route guidance exit objects are cropped by taking into account occlusion areas consisting of map data or z. B. also be calculated from detected by a sensor of the vehicle obstacles. In this case, those subareas are cut out of the first route guidance exit objects that are located behind concealment areas or concealment objects in the driver's field of vision. Thus, a realistic representation is achieved, in which the displayed route guidance objects - and possibly also other information objects - are embedded in the driver's visible driving environment and thus can be assigned to the driving environment without further intellectual implementation by the driver.

The map data can be from both an in-vehicle map memory, z. As a digital disk such as a CD-ROM, as well as via remote data transmission. The position data can - in a conventional manner - from a global positioning system, a Wegstreckensensor or a rotation rate sensor or a combination thereof - be determined. As a result, the position and orientation, ie direction of travel of the vehicle, determined and assigned to the map data in a unique way. The route guidance instructions are determined in a manner known per se by navigation algorithms from the driver's input destination data and the position data of the vehicle. The possibly to be considered concealment objects can directly from the map data or by additional sensors of the vehicle, eg. B. distance sensors on ultrasound, infrared or radar, and on the evaluation of stereo images, in particular by photogrammetry, are determined.

The invention will be explained in more detail below with reference to the accompanying drawings of some embodiments. Show it:

1 a block diagram of an apparatus according to an embodiment with a display panel in the field of view of the driver;

2 a block diagram according to another embodiment when displayed on a display panel of a display device;

3 a block diagram according to another embodiment with a consideration of occlusions;

4a , b in the displays of the driver visible representations in a) the embodiments of the 1 . 2 and b) the 3 ,

A device for displaying driver information for a vehicle F has according to 1 a card store 2 on, z. As a digital storage medium in the motor vehicle F or an externally provided, via remote data transmission with the motor vehicle F related map database. From the map memory 2 Map signals K to a navigation device 3 output. The navigation device 3 continues to take from a position sensor 4 a Global Positioning System (GPS) position signals P and from an input device 5 Target data Z, z. B. entered by the driver destination coordinates or name information of a destination on. The navigation device 3 calculates route guidance instructions in a manner known per se and sends corresponding route guidance signals IF, which comprise a direction signal for direction assignment, to a determination device 6 out. The determination device 6 continues to take position data P of the position sensor 4 and map data K of the map memory 2 and determines therefrom first route guidance objects G1, which correspond to a representation in a map of the driving environment.

Furthermore, by the navigation device 3 relevant objects, eg. As buildings, landscapes, attractions, in the field of vision of the driver on the basis of map data K and position signals P determined and information signals I with information about these objects, eg. For example, their names and functions, to the determiner 6 be issued. The determination device 6 determines information objects IO, z. B. panels with information about the objects.

A calculation device 7 picks up the first route guidance objects G1, map data K, and position data P, and determines route guidance display objects ZO indicating the shape, size, and coordinates in a display panel 10 contain. The destination guidance display objects ZO can in particular be formed as projection images of the destination guidance objects G1 from the perspective of the driver. Furthermore, the information objects IO are sent to the calculation device 7 passed the coordinates of the information objects IO in the display field 10 calculated; In this case, the information objects IO can be changed.

The calculation device 7 gives the route guidance display objects ZO and the information objects IO including their coordinates to a projection device 8th they continue in this embodiment as light signals on a display panel 10 a transparent lens 9 throws. The lens 9 is in this case arranged between the driver and the vehicle environment observed by him, ie in the field of vision of the driver; she can z. As the windshield itself or arranged behind the windshield transparent lens 9 be. The driver thus takes the Zielführungsanzeigeobjekt ZO - in the embodiment shown, a left turn indicating arrow ZO - in the correct position in his by the otherwise transparent display panel 10 seen vehicle environment true. The navigation device 3 , Determination device 6 and calculating means 7 can be integrated as a control device 11 be educated.

In the embodiment of the 2 an illustration is made on a separate display device 22 , For this purpose, the first route guidance objects G1 and information objects IO are determined as in the first embodiment and to an image-generating device 14 output. A mono camera or two cameras 12a . 12b that z. B. within the vehicle F are arranged below the headliner, take the driving environment in the direction of the driver and give environmental image signals U1, U2 to an evaluation 15 , the first image signals U to the image forming device 14 outputs. The image-forming device 14 in turn determines target guidance display objects ZO and superimposes them and the information objects IO on the first image signals U and outputs second image signals B to a display field 20 the display device 22 out. In this embodiment as well, the driver can thus recognize the driving scene which is currently familiar to him in a real or reality-adapted image and assign route guidance display objects ZO and information objects IO directly to the traffic, to which he, however, his view from the driving environment to the display device 22 must turn. In the second embodiment of the 2 can the navigation device 3 , Determination device 6 , Evaluation device 15 and imaging equipment 14 integrated as a controller 16 be designed with appropriate programming.

In the embodiment of the 3 be compared to the first two embodiments of 1 . 2 the route guidance display objects ZO and information objects IO are output appropriately cropped to realistically adapt their perception to partial obscurations by obscuration objects in the driver's environment / field of view. The process of trimming, ie removing subregions, can either be done as in 3 shown in the map, ie at the objects G1, IO of the map display, or even in the on the display panel 10 . 20 To be displayed destination guidance display objects ZO and information objects IO.

The first route guidance objects G1 and information objects IO1 are generated by the determination device 6 first to a trimming device 21 output. The circumcision device 21 Determines subareas TB of the route guidance objects G1 and information objects IO1, which lie in the line of sight - straight line - behind a masking object, ie between which and the position of the driver at least one masking objects V1, V2 is located. Since a partial area TB is obscured due to the front position of the obscured object V1, it is removed. As a result, second destination guidance objects G2 and second information objects IO2 are determined, and in turn the calculation facility 7 or the image-forming device 14 entered and as in the above embodiments of 1 or 2 Destination guidance display objects ZO and information objects IO on a display field 10 respectively. 20 shown.

As an alternative to the embodiment shown, the trimming device 21 basically also behind the projection device 7 be arranged and thus detect and remove occlusions directly on the image to be displayed as overlaps of two-dimensional surface areas.

The navigation device 3 , Determination device 6 , Circumcision device 15 and calculating means 7 can be integrated as a control device 23 be designed with appropriate programming.

In all embodiments, additional acoustic signals can be output. Especially at the 2 In this case, when outputting destination guidance display objects ZO and / or information objects IO or even when these objects ZO, IO are audible signals are output so that the driver briefly looks at the display field 20 directed.

Claims (8)

A method for displaying driver information in a motor vehicle, comprising at least the following steps: generating targeting signals (ZF) from input target data signals (Z), position signals (P) and card signals (K), determining at least one first targeting object (G1) from the target guidance signals (ZF ), Map signals (K) and position signals (P), determination of a route guidance display object (ZO) for the correct display in a display field ( 10 . 20 ), wherein the route guidance display object (ZO) is determined from the first route guidance object (G1) and information about its position in the display area (ZO) 10 . 20 ) and outputting the at least one route guidance display object (ZO) on the display field ( 10 . 20 ), wherein on the basis of the position signals (P) and map signals (K) it is determined whether an obscuring object (V1, V2, V3) is arranged between the vehicle position and a geographical position of a subregion (TB) of the first target guidance object (G1), characterized in that the route guidance display object (ZO) is generated by removing that subarea (TB) of the first route guidance object (G1) in dependence on the map signals (K) and position signals (P) in the field of view of a driver of the vehicle behind the obscured object is when it is determined based on the position signals (P) and map signals (K) that the masking object (V1, V2, V3) between the vehicle position and a geographical position of the sub-area (TB) is arranged, with other objects detected as concealment objects which are detected by at least one sensor of the vehicle in the form of a radar, stereo image, Monobild-, infrared or ultrasonic sensor. A method according to claim 1, characterized in that from the card signals (K) and position signals (P) at least one information object (IO) and displayed on the display ( 10 . 20 ). A method according to claim 2, characterized in that the information object (IO) is determined by information signals (I) are generated from the card signals (K) and position signals (P), from which at least a first information object (IO1) is generated from the a partial area (TB) is removed if, on the basis of the position signals (P) and map signals (K), it is determined that a masking object (V1, V2, V3) is arranged between the vehicle position and a geographical position of the partial area (TB). Method according to claim 1 or 3, characterized in that surface profiles and / or buildings (V1, V2, V3) are recognized as masking objects (V1, V2, V3). Method according to one of the preceding claims, characterized in that the position signals (P) of at least one sensor ( 4 ) in the form of a sensor ( 4 ) of a Global Positioning System (GPS) or an odometer or yaw rate sensor. Method according to one of the preceding claims, characterized in that the display field ( 10 ) is a transparent area in the field of vision between the driver and a driving range of his vehicle. Method according to claim 6, characterized in that the display field ( 10 ) a part of the windshield of the vehicle, a transparent lens ( 9 ) behind the windshield of the vehicle or part of a driver-carried sighting device. Method according to claim 7, characterized in that the display field ( 20 ) on a display device ( 22 ) is provided, wherein on the display panel ( 20 ) Image signals (B) are output, the route guidance objects (ZO) and from a camera device ( 12a . 12b ) of the vehicle output environmental image signals (U).

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