WO2018000008A1 - Driving safety training arrangement - Google Patents

Abstract

The invention relates to a driving safety training arrangement (1), comprising a driving safety section (3) on which it is possible to travel using a vehicle (2). To firstly reduce operating costs and secondly depict hazard situations more realistically, the training system (1) has – a memory (4) with image data (5) for at least one virtual hazard situation, particularly an obstacle, – a display device (6) for showing an image or image sequence, generated from the image data (5), for a virtual hazard situation in the field of vision of the vehicle driver, the display device (6) comprising transparent data goggles or a projection device directed at the windscreen of the vehicle (2), and – a triggering device (7) for triggering the showing process, the triggering device (7) comprising at least one, preferably multiple, signal generator(s) (8, 9) arranged along the driving safety section and a signal receiver (10), arranged in the vehicle (2) or in the display device (6), for receiving a signal sent by the signal generator (8, 9).

Description

 Driving Safety Training arrangement

The invention relates to a driving safety training arrangement comprising a memory with image data of at least one virtual danger situation, in particular of an obstacle, a display device for displaying an image generated from the image data or image sequence of a virtual danger situation in the field of vision of the vehicle driver, wherein the display device transparent data glasses,

in particular a data goggle known as an "augmented reality" or mixed reality goggle, or a goggle aimed at the windshield of the vehicle

Projection device comprises, and a triggering device for triggering the

Einblendvorganges, according to the preamble of claim 1.

Training systems of the conventional type use water walls or hinged obstacles, which are actuated as soon as the vehicle has fallen below a certain distance to the relevant point. The disadvantage of such training systems is that they are hardly locally variable and usually not very realistic and high

Cause manufacturing and operating costs. In addition, for subsequent drivers who observe an ancestor, already apparent, at which point, for example, a water wall or a hinged obstacle is actuated, causing the

Surprise effect is lost.

In the JP 2012098609 A and DE 102014208352 AI training arrangements using "mixed reality" systems are described, wherein the fading of an image or a sequence of images of a virtual danger situation in the field of view of

Vehicle driver based on a position determination via a combination of an absolute position determination by means of GPS and a relative position determination by means of vehicle dynamics data done. It has proven in the practical testing of

However, driving safety systems using mixed reality have proven that such an approach is detrimental. The reason lies in the so-called "jitter" of GPS-averaged data, ie in the temporal clock shaking in the transmission of digital signals, and the consequent "jumping around" of the determined absolute position, even if the vehicle does not move For conventional applications of positioning such as In navigation applications, this blur of location is irrelevant because it is negligible and ultimately not noticeable to the user is. However, if the detected position is the basis for calculating a displayed image sequence or a displayed image, as in the context of "mixed reality" systems, this blurring causes the displayed images to "jump around", which greatly irritates the driver and even causes headaches and nausea Moreover, with known training arrangements based on GPS-based data, it is difficult to change simulated dangerous situations since corresponding simulation systems must be reprogrammed or at least a software intervention must be carried out

Acceptance study.

The aim of the present invention is to eliminate these disadvantages and to provide a driving safety training arrangement, with the dangerous situations for the subject can be represented realistic closer, which has a better training effect and should be characterized by lower costs in production and operation. The training system should be versatile and flexible in its functionality.

This object is achieved with the features of claim 1. Claim 1 refers to a driving safety training arrangement comprising a memory

Image data of at least one virtual danger situation, in particular of an obstacle, a display device for displaying an image generated from the image data or image sequence of a virtual danger situation in the field of vision of the vehicle driver, wherein the display means transparent data glasses, in particular one as "augmented reality" Glasses or "Mixed Reality" glasses known data glasses, or directed to the windshield of the vehicle projection device comprises, and a triggering device for triggering the Einblendvorganges. According to the invention, it is proposed that the triggering device comprise at least one, preferably a plurality of signal transmitters arranged along the driving safety route and a signal receiver arranged in the vehicle or in the display device for receiving a signal transmitted by the signal transmitter.

When fading in, a virtual danger situation becomes the real picture that the

Vehicle driver through the transparent data glasses or the windshield sees superimposed. The display or projection of virtual hazard situations based on image data increases the functionality and the training effect. So can the danger situation to be overlaid in a simple manner - by means of appropriate (image data processing) - flexibly selected, changed and optimally adjusted to the training effect to be achieved Under virtual danger situation, the pictorial imitation - preferably including movement sequences - is understood as a possible real dangerous situation.

However, according to the invention, the fading in of images or image sequences does not take place on the basis of GPS-determined data, but on the basis of signal transmitters ("markers") which are arranged along the driving safety route. By using external transducers, the displayed image can be "stabilized" compared to GPS-based simulations. Only for an interaction with a displayed image (for example, the changed size representation of the displayed image depending on the driver's acceleration or braking, simulation of a collision and the like) requires knowledge of the current position of the vehicle based on GPS data and / or data the vehicle dynamics can be determined. However, according to the invention, the representation of the virtual danger situation can be stabilized by reference to its defined absolute position.

The features according to the invention also have the advantage that the simulated dangerous situations can be changed more easily by simply changing the signal transmitters in their position. In known systems, the simulation system must be reprogrammed, or at least take a software intervention. In the training arrangement according to the invention a simple switching of the signal generator, which represents a lower operating effort for the driving safety trainer and rather corresponds to the already well-maintained operation of driving safety trainer. In addition, as mentioned above, a variability of the simulated dangerous situations important for the training effect, so it is very advantageous if changes in the simulated hazard situations can be made as simple as possible.

Preferably, a multiplicity of different hazardous situations are stored in the (image data) memory in the form of image data. Depending on the training program to be completed and / or in dependence of the instructions generated by the triggering device certain dangerous situations can be selected and by means of Display device are displayed in the field of vision of the driver. The dangerous situations can be shown as static (ie not changing) images. However, it is preferred if the dangerous situations are represented dynamically (ie in a sequence of images or in the manner of a film). As a result, movements (of a deer, a pedestrian, etc.) can be imitated.

The image data can be taken from the memory, further processed, linked to a sequence of images and depending on external parameters (driving speed,

Ambient brightness, weather, orientation of the data glasses, etc.) can be changed or adapted. The generation of (moving) images from the image data can thus also include a modification or adaptation of the data, for which purpose the training arrangement also comprises a data processing device.

In the context of the present application, "data glasses" are understood to mean a device which is worn like glasses and which is capable of virtual, preferably

To display three-dimensional content in the real world and to position these objects in relation to real objects in space. Such data glasses are also referred to as "augmented reality" or "mixed reality" glasses. One

Vehicle drivers who have put on such glasses, see the environment as through normal eye-glasses, however, he (holographically virtual) objects can be displayed in the field of view.

For example, virtual danger situations could be: "a pedestrian enters or crosses the lane", "a deer jumps onto the lane", "a cyclist falls", "a motorist disregards a priority board", "a truck loses cargo", etc. Even this example list shows that driving training can be made much closer to reality and more flexible than is the case in the prior art, but holographic reproduction could also simulate a smoke screen or a perception impaired by alcohol consumption.

The triggering device is coupled directly or indirectly to the display device. With the triggering device, it is possible to trigger the fade or the fade-in process at a certain point of the driving safety route. As a result, a coupling of the display device with the driving safety distance is created. Thus, the special Condition of the track at certain points serve as a "background environment" for particularly well suited hazardous situations.

The triggering device according to the invention comprises at least one, preferably a plurality of signal transmitters arranged along the driving safety route and a signal receiver arranged in the vehicle or in the display device for receiving a signal transmitted by the signal transmitter. The signal generator (s) are preferably arranged stationarily along the route and can be active or passive, ie actively send a signal or data to the signal receiver of the vehicle when passing through a vehicle, or be passively detected or read out by the signal receiver of the vehicle. In the latter case, it is also referred to as "markers", which could be, for example, QR codes The signalers can be arranged at the edge of the track or even further away as long as they can be detected by the vehicle receiver. Markers) can be over in the

A pre-known size of the markers and the observed size and inclination, the relative position of the marker to a vehicle-side camera can be calculated as a signal receiver. In the case of an active signal generator can inter alia by

Timestamps in the signal or by measured frequency changes (Doppler effect) or by signal strength changes the relative position to the signal receiver are calculated. An arrangement of the signal generator in the vicinity of the route is advantageous but not essential in principle. In any case, the signal transmitters enable a (specific) virtual danger situation to be "activated" at a certain point in the route Act that contain image data.

A preferred embodiment is characterized in that a first signal transmitter codes for a first dangerous situation and a second signal transmitter codes for a second dangerous situation different from the first dangerous situation, wherein preferably the first signal transmitter and the second signal transmitter are arranged at different locations along the driving safety route , This realizes a course with a sequence of different dangerous situations. But it is also possible or sometimes technically necessary that one or more signal generator for one and the same Encoding hazardous situation, such as when a start and end position of a displayed, moving object must be defined using different signal generator.

A preferred embodiment is characterized in that the signal transmitted by the signal generator is a triggering and / or coding signal or the image data of the

contains the relevant virtual hazard situation. This includes the possibilities that the signal transmitter only transmits a triggering signal for a specific dangerous situation and the actual image data are stored on the vehicle side or in the display device, or that the signal generator transmits the image data of the imported (image) sequence to the vehicle or display signal receiver transfers. The data size to be transmitted between transmitter and receiver can be kept small in the former case, and the further calculations and data generation for the display device are carried out on the vehicle or display side.

A preferred embodiment is characterized in that the memory in

Vehicle or arranged in the display device. The image data can be taken from the memory, further processed, linked to a sequence of images and depending on external parameters (driving speed, ambient brightness, weather,

Orientation of the data glasses, etc.) changed or adapted. As already mentioned, the (image data) memory could also be arranged in the signal generator or even in a central unit that is connected to the signal generator (s).

A preferred embodiment is further characterized in that the data glasses comprise a holographic projection device for projecting the image or the image sequence onto at least one glass of the data glasses.

A preferred embodiment is characterized in that a device for determining the reaction time of the driver is provided in dependence on the Einblendvorganges. This can be accomplished particularly simply because of the solution according to the invention, since the triggering device and the display device are in any case linked in terms of signal or data. Of course, the measurement of other parameters for driving safety is possible, such as pulse or pupil movement, or medical stress indicators such as blood pressure or skin temperature. A preferred embodiment is characterized in that at the

Display device displayed a virtual hazard situation in response to the driving speed is changeable. As a result, real dangerous situations are mimicked optimally, in particular, the perceptible size and perspective of objects or obstacles when approaching the vehicle can be adjusted accordingly.

The training arrangement thus preferably comprises a speed sensor or is connected to a speed sensor of the vehicle, since the instantaneous speed is in any case a decisive parameter for the realistic representation of virtual dangerous situations.

In the following, preferred embodiments of the invention will be described in more detail with reference to the drawing. It shows

1 shows a driving safety training arrangement according to the invention,

2 shows a superposition of a virtual danger situation (runner) with the real environment, and

Fig. 3 is a data glasses.

Fig. 1 and 2 show a driving safety training arrangement 1 with a

Driving safety route 3, on which a subject in a vehicle 2 a

Driving safety training completed. The training arrangement 1 comprises a memory 4 with image data 5 of at least one virtual danger situation, in particular of an obstacle, and a display device 6 for inserting a picture or sequence of images of a virtual danger situation into the field of view of the image generated from the image data 5

Vehicle driver. For the subject results in a consequence of a superposition of a

Danger situation (in Fig. 2, a road crossing transporter) with the real environment.

In the illustrated embodiment, the display device 6 is a transparent data goggle, in particular an "augmented reality" or "mixed-reality" goggle, through which the wearer can see the real environment, but additionally

Impressions in the field of vision are possible. The data glasses may include a holographic projection device for projecting the image or image sequence. In a In an alternative embodiment, the display device could be one on the

Windscreen of the vehicle 2 directed projection device.

The training system further comprises a triggering device 7 for triggering the insertion process of a virtual danger situation. In this case, an image or a sequence of images of a virtual danger situation by means of the display device 6 fades into the field of view of the driver, the fade-in by the

Tripping device 7 is triggered. In the illustrated embodiment, the triggering device 7 comprises a plurality of stationary signal transmitters 8, 9 arranged along the driving safety route 3 and a signal receiver 10 arranged in the vehicle 2 or in the display device 6 (FIG. 3) for receiving a signal transmitted by the signal transmitter 8, 9. When approaching, i. falls below a certain distance to the signal generator 8, 9, signalers 8, 9 and signal receiver 10 occur in uni- or

bidirectional communication, so that as a result, the display of a dangerous situation is triggered by the display device.

A first signal generator 8 could code for a first dangerous situation and a second signal generator 9 for a second dangerous situation different from the first dangerous situation. In this case, the first signal transmitter 8 and the second signal generator 9 are arranged at different locations along the driving safety route 3.

The signalers 8, 9 preferably have a limited range, e.g. at most in the extent of twice the width of the driving safety distance 3. Outside this range, the signals from the signal generator can not be received by the signal receiver 10. The signal transmitted by the signal generator 8, 9 may be a triggering and / or coding signal (i.e., without image information regarding a virtual danger situation) or may already contain the image data of the at least one virtual danger situation.

In Fig. 1, the memory 4 is arranged with the image data 5 in the vehicle 2. In the embodiment illustrated in FIG. 3, the memory 4 is arranged in the display device 6.

The signal transmitters 8, 9 may be interconnected by a central (data processing) unit 12. This can be done on the signal transmitters 8, 9 (parameter settings, for example, the image data (if this of the Signalers are provided), the range, the operating state (on-off), etc. may affect.

The training arrangement shown in FIG. 1 also comprises a device 1 1 arranged in the vehicle 2 for determining the reaction time of the vehicle driver as a function of the insertion process.

It is further preferred if the image displayed on the display device 6 of a virtual dangerous situation is variable as a function of the driving speed and / or as a function of the orientation of the data glasses and thus is not purely static. Basically, the visualized virtual hazard situation is preferably displayed in the form of moving pictures (i.e., in the manner of a movie).

The inventive arrangement is characterized by lower operating costs and a better compared with conventional driving safety systems

Training effect, since the obstacles used are simulated in a conventional manner with water walls, but for subsequent drivers - who often watch the previous driver - no longer surprise. By contrast, the (holographic) projection is only visible to the driver with data glasses. In addition, the dangerous situations or obstacles can be varied more easily, either by data technology or by e.g. the signalers are arranged differently along the route.

Claims

claims: 1. driving safety training arrangement (1) comprising a by means of a vehicle (2) passable driving safety distance (3), as well as  a memory (4) with image data (5) of at least one virtual  Dangerous situation, especially an obstacle,  a display device (6) for superimposing an image or sequence of images of a virtual danger situation generated from the image data (5) into the Field of view of the driver, wherein the display device (6) has a transparent data glasses, in particular an "augmented reality" or "Mixed Reality" glasses, or one on the windshield of the vehicle (2) directional projection device includes, and  a triggering device (7) for triggering the insertion process, characterized in that the triggering device (7) at least one, preferably a plurality along the driving safety distance arranged (n)  Signal transmitter (8, 9) and in the vehicle (2) or in the display device (6) arranged signal receiver (10) for receiving a signal from the signal generator (8, 9) transmitted signal comprises. 2. Driving safety training arrangement according to claim 1, characterized in that a first signal transmitter (8) codes for a first dangerous situation and a second signal generator (9) codes for a second, different from the first dangerous situation dangerous situation, wherein preferably the first signal transmitter (8 ) and the second signal generator (9) at different locations along the driving safety distance (3) are arranged. 3. Driving safety training arrangement according to claim 1 or 2, characterized in that the signal transmitted by the signal generator (8, 9) is a trigger and / or coding signal or is a signal containing the image data (5) of the at least one virtual dangerous situation. 4. Driving safety training arrangement according to one of the preceding claims, characterized in that the memory (4) in the vehicle (2) or in the display device (6) is arranged. 5. Driving safety training arrangement according to one of the preceding claims, characterized in that the data glasses a holographic  Projection device for projecting the image or the image sequence on at least one glass of the data glasses comprises. 6. Driving safety training arrangement according to one of the preceding claims, characterized in that a device (1 1) for determining the  Reaction time of the driver is provided in dependence of the Einblendvorganges. 7. Driving safety training arrangement according to one of the preceding claims, characterized in that on the display device (6) superimposed image of a virtual dangerous situation in dependence on the driving speed is variable.