| 摘要 |
PROBLEM TO BE SOLVED: To provide a system for informing a pedestrian of a route by repeatedly generating a signal tone, informing the pedestrian of the whole direction in a walk range, and position relation between a hazardous location and the pedestrian, and safely guiding the pedestrian to a network-like (mesh-like) complicated route.SOLUTION: To all routes of a plurality of guidance parts and signal transmission sections for connecting the guidance parts, signal wiring obtained by bundling four electric wires for passing through four-phase signals and a common wire is installed along the routes, and at the respective guidance parts, loudspeakers are periodically arranged by giving deviation with approximately fixed distance d to the electric wires of the respective phases. Signal current to which delay at fixed time t is given is fed for every phase from a controller to the electric wires of the respective phases of the signal wiring. When voice of a bird is used, the voice becomes waves of a guidance signal tone as if the bird flies on the routes of the loudspeakers such as A, B, C, D, and the complicated route can be guided by forming waves of the guidance signal on all network-like guidance routes. |
