In the past the blind used to utilize only the simplest solutions. Those were not bad. Mobility canes are still very effective when it comes to acquiring spatial orientation or avoiding obstacles on the ground - the ones that are in the path of the visually impaired. However, new, more advanced, electronic devices were invented lately. And they occurred to be a perfect complement to the canes.
Smartcane device is an electronic travel aid which fits as handle of the white cane. As white cane can only detect obstacles up to knee height, Smartcane compliments its functionality by detecting obstacles from knee to head height. It detects obstacles using sonic waves and the presence of obstacles is conveyed through intuitive vibratory patterns.