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The Bristol Robotics Laboratory at the University of Bristol, UK has built a robot that senses obstacles not with cameras, but sensitive whiskers at the front end:
Researchers at the University of Bristol in England hope to deploy the poodle-size ‘bot in search-and-rescue missions where vision is impaired, like in mines or smoky rooms. Its 18 whiskers move back and forth five times per second. When a whisker bends, a sensor on its shaft signals software to orient the ’bot toward the object. Whiskers close to an object move less, while those farther away make wide, sweeping motions to establish the object’s exact edges.
Link | Bristol Robotics Laboratory
Researchers at the University of Bristol have developed a helmet that helps visually impaired people make use of echolocation to find their way around:
The system takes real-time imagery of local obstacles, be they stairs, walls, or trees, as well as moving objects like cars and other people, and alerts the wearer using the sounds perfected in the Spanish echolocation system mentioned above.
The helmet uses stereo headphones to denote where the objects are relative to the wearer, and the volume of the sound indicates the distance. The device has a 60-degree range of vision, and can identify objects as far away as 15 feet. The researchers are also currently looking to integrate GPS data into the rig, so that users can use it to plot specific courses.
