Continental's Augmented Reality HUD puts information on the road
August 5, 2014
Displaying your speed on the windshield can be handy for keeping under the speed limit, but Continental is taking things to the next level with its Augmented Reality Head-up Display (AR-HUD) prototype. In addition to showing your current speed, the system can overlay information on the road specifically where it is most relevant to the driver, such as the distance to the car in front, when to make a turn, or even upcoming driving conditions.
The system draws data from the vehicle's camera and radar and combines it with the vehicle's dynamics data, digital maps and GPS positioning, which is used to create a model of the external view of the car as seen from the driver's perspective. This allows the system to project the augmented information onto the windscreen at the correct visual point for the driver.
The system overlays full-color graphics on the real road view in a 130 cm (51 in) wide by 60 cm (23 in) high section of the driver's field of vision at an optical-equivalent distance of 7.5 m (24 ft). The Digital Micromirror Device (DMD) technology used in this system is claimed to be the same as that used for digital cinema devices, such as the Odin Handy Projector.
As part of this system, navigation symbols – such as turns – are directly incorporated in the forward field of view, so that the driver doses not have to look away to a GPS device located elsewhere in the vehicle. Similarly, when distance controls such as Adaptive Cruise Control (ACC) are enabled, a crescent-shaped icon displayed by the AR-HUD denotes which vehicle in the field of view is detected by the assistance system and the driver is kept alerted to any stray movements from their own vehicle line by an incorporated lane-monitoring alert.
"In a world that is becoming increasingly complex, the AR-HUD relieves the burden on the driver with a new quality of information," says Helmut Matschi, a member of the Executive Board at Continental. "In the augmentation, we are connecting what the driver's eyes see with explanatory information. The AR-HUD is an important step in the direction of holistic human machine interfaces in cars for a more comfortable, more economic, and safer driving experience. Drivers receive all important information before their eyes in an easily comprehensible way. This is a major step against driver distraction and sensory overload, both now and in the future."
Developed from previous HUD systems that are currently incorporated in many European cars, the new system is in an advanced stage of development and has already been integrated into a demonstration vehicle. However, unlike other systems that are being developed for racing vehicles – such as Jaguar's Virtual Windscreen – which require specific race-track telemetry to provide information on other vehicles, the Continental AR-HUD collects its data using standard on-board electronics systems.
Continental is planning to have a production-ready version of its AR-HUD available in 2017 for purchase by automakers for incorporation in their production model vehicles.
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