| 摘要 |
PROBLEM TO BE SOLVED: To guide visually handicapped people in a more understandable and safe manner, supplying information or others as compared with a system of guiding the people using a product based on concave and convex just like the conventional Braile raised latters. SOLUTION: Current is sensed by an ammeter 7 attached to a stick 5 or the like or a portable ammeter and signals are transmitted to a user by sound or vibration. As for the supply of information, almost unlimited application is expected, for example, linkage with signals and the supply of information for electric cars or elevators. |
