Self-driving electric vehicles are advancing, but they still face challenges in terms of reliability. In an effort to overcome these obstacles, researchers are developing a solution that involves embedding high-tech reflective road markers into roadways that can communicate with autonomous EVs.
From an article in StudyFinds by staff.
To do so, engineers are placing low-powered sensors inside reflective raised pavement markers that help drivers identify lanes. These sensors transmit information about the road shape to passing cars. This technology proves effective even when traditional vehicle cameras or remote laser sensing, such as LiDAR, face obstacles like fog, snow, or glare.
The technology is the product of a collaboration between the Department of Energy’s Oak Ridge National Laboratory (ORNL) and Western Michigan University (WMU). Their goal is to improve the accuracy and safety of autonomous driving features, particularly in remote areas.
By converting existing infrastructure into smart devices, the researchers can shift some of the processing load from the car’s software to the road infrastructure. This not only provides more accurate environmental information for the vehicle but also helps save electric vehicle battery power, extending the driving range and promoting wider adoption of electric vehicles. The chip-enabled pavement markers can reduce navigational power consumption by up to 90%, compared to a leading camera and LiDAR-based autonomous driving technologies.
This technology has the potential to enhance not only future self-driving vehicles but also existing autonomous driving features like lane assist. The WMU, leading the larger project, is collaborating with research and industry partners to develop related sensor and autonomous driving technologies, including radar retro-reflectors, high-definition mapping, computational offloading, and weather sensing. They are also measuring the reduction in vehicle energy use enabled by these technologies through closed-course vehicle testing.
For the complete article on reflective road markers CLICK HERE.
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