Toyota on Monday introduced a concept for a piece of wearable tech that could help the visually impaired better navigate the world around them. Dubbed "Project Blaid," the mobility device would sit atop a wearer's shoulders and use cameras to sense the layout of indoor spaces. Wearers would be able to ask the device about objects and areas in a room, the company said. The wearable tech would guide them using speakers or vibrations for prompts. Down the line, Toyota hopes to upgrade Project Blaid with mapping and facial-recognition technologies.