| 摘要 |
A guiding device includes: a fixed guiding device consisting of a marking (130, 211,311) containing an electroconductive material, on a pre-defined path that can be used by a visually impaired person, parallel to the path, characterised in that the quantity and/or distribution of the conductive material is uniform over the marking parallel to the path over a distance of at least one metre and is variable close to events on the path; and a mobile guiding device to be used together with the fixed guiding device and characterised in that it includes a stick (201, 301), a sensor (202, 302) consisting of an electroconductive material positioned at the distal end of the stick, and an element (203 to 210, 303 to 305) for warning the user whenever the sensor detects an event.
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